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Chemical Structure| 78190-11-1 Chemical Structure| 78190-11-1

Structure of 78190-11-1

Chemical Structure| 78190-11-1

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Product Details of [ 78190-11-1 ]

CAS No. :78190-11-1
Formula : C14H17NO4
M.W : 263.29
SMILES Code : O=C(C1CN(C(OCC2=CC=CC=C2)=O)CCC1)O
MDL No. :MFCD02931282
InChI Key :FFLPIVZNYJKKDM-UHFFFAOYSA-N
Pubchem ID :234339

Safety of [ 78190-11-1 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H332-H335
Precautionary Statements:P261-P280-P305+P351+P338

Computational Chemistry of [ 78190-11-1 ] Show Less

Physicochemical Properties

Num. heavy atoms 19
Num. arom. heavy atoms 6
Fraction Csp3 0.43
Num. rotatable bonds 5
Num. H-bond acceptors 4.0
Num. H-bond donors 1.0
Molar Refractivity 73.2
TPSA ?

Topological Polar Surface Area: Calculated from
Ertl P. et al. 2000 J. Med. Chem.

66.84 Ų

Lipophilicity

Log Po/w (iLOGP)?

iLOGP: in-house physics-based method implemented from
Daina A et al. 2014 J. Chem. Inf. Model.

2.18
Log Po/w (XLOGP3)?

XLOGP3: Atomistic and knowledge-based method calculated by
XLOGP program, version 3.2.2, courtesy of CCBG, Shanghai Institute of Organic Chemistry

1.64
Log Po/w (WLOGP)?

WLOGP: Atomistic method implemented from
Wildman SA and Crippen GM. 1999 J. Chem. Inf. Model.

1.59
Log Po/w (MLOGP)?

MLOGP: Topological method implemented from
Moriguchi I. et al. 1992 Chem. Pharm. Bull.
Moriguchi I. et al. 1994 Chem. Pharm. Bull.
Lipinski PA. et al. 2001 Adv. Drug. Deliv. Rev.

1.57
Log Po/w (SILICOS-IT)?

SILICOS-IT: Hybrid fragmental/topological method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

1.28
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.65

Water Solubility

Log S (ESOL):?

ESOL: Topological method implemented from
Delaney JS. 2004 J. Chem. Inf. Model.

-2.41
Solubility 1.03 mg/ml ; 0.0039 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble
Log S (Ali)?

Ali: Topological method implemented from
Ali J. et al. 2012 J. Chem. Inf. Model.

-2.66
Solubility 0.58 mg/ml ; 0.0022 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble
Log S (SILICOS-IT)?

SILICOS-IT: Fragmental method calculated by
FILTER-IT program, version 1.0.2, courtesy of SILICOS-IT, http://www.silicos-it.com

-2.36
Solubility 1.15 mg/ml ; 0.00436 mol/l
Class?

Solubility class: Log S scale
Insoluble < -10 < Poorly < -6 < Moderately < -4 < Soluble < -2 Very < 0 < Highly

Soluble

Pharmacokinetics

GI absorption?

Gatrointestinal absorption: according to the white of the BOILED-Egg

High
BBB permeant?

BBB permeation: according to the yolk of the BOILED-Egg

Yes
P-gp substrate?

P-glycoprotein substrate: SVM model built on 1033 molecules (training set)
and tested on 415 molecules (test set)
10-fold CV: ACC=0.72 / AUC=0.77
External: ACC=0.88 / AUC=0.94

No
CYP1A2 inhibitor?

Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.83 / AUC=0.90
External: ACC=0.84 / AUC=0.91

No
CYP2C19 inhibitor?

Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set)
and tested on 3000 molecules (test set)
10-fold CV: ACC=0.80 / AUC=0.86
External: ACC=0.80 / AUC=0.87

No
CYP2C9 inhibitor?

Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set)
and tested on 2075 molecules (test set)
10-fold CV: ACC=0.78 / AUC=0.85
External: ACC=0.71 / AUC=0.81

No
CYP2D6 inhibitor?

Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set)
and tested on 1068 molecules (test set)
10-fold CV: ACC=0.79 / AUC=0.85
External: ACC=0.81 / AUC=0.87

No
CYP3A4 inhibitor?

Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set)
and tested on 2579 molecules (test set)
10-fold CV: ACC=0.77 / AUC=0.85
External: ACC=0.78 / AUC=0.86

No
Log Kp (skin permeation)?

Skin permeation: QSPR model implemented from
Potts RO and Guy RH. 1992 Pharm. Res.

-6.74 cm/s

Druglikeness

Lipinski?

Lipinski (Pfizer) filter: implemented from
Lipinski CA. et al. 2001 Adv. Drug Deliv. Rev.
MW ≤ 500
MLOGP ≤ 4.15
N or O ≤ 10
NH or OH ≤ 5

0.0
Ghose?

Ghose filter: implemented from
Ghose AK. et al. 1999 J. Comb. Chem.
160 ≤ MW ≤ 480
-0.4 ≤ WLOGP ≤ 5.6
40 ≤ MR ≤ 130
20 ≤ atoms ≤ 70

None
Veber?

Veber (GSK) filter: implemented from
Veber DF. et al. 2002 J. Med. Chem.
Rotatable bonds ≤ 10
TPSA ≤ 140

0.0
Egan?

Egan (Pharmacia) filter: implemented from
Egan WJ. et al. 2000 J. Med. Chem.
WLOGP ≤ 5.88
TPSA ≤ 131.6

0.0
Muegge?

Muegge (Bayer) filter: implemented from
Muegge I. et al. 2001 J. Med. Chem.
200 ≤ MW ≤ 600
-2 ≤ XLOGP ≤ 5
TPSA ≤ 150
Num. rings ≤ 7
Num. carbon > 4
Num. heteroatoms > 1
Num. rotatable bonds ≤ 15
H-bond acc. ≤ 10
H-bond don. ≤ 5

0.0
Bioavailability Score?

Abbott Bioavailability Score: Probability of F > 10% in rat
implemented from
Martin YC. 2005 J. Med. Chem.

0.56

Medicinal Chemistry

PAINS?

Pan Assay Interference Structures: implemented from
Baell JB. & Holloway GA. 2010 J. Med. Chem.

0.0 alert
Brenk?

Structural Alert: implemented from
Brenk R. et al. 2008 ChemMedChem

0.0 alert: heavy_metal
Leadlikeness?

Leadlikeness: implemented from
Teague SJ. 1999 Angew. Chem. Int. Ed.
250 ≤ MW ≤ 350
XLOGP ≤ 3.5
Num. rotatable bonds ≤ 7

No; 1 violation:MW<0.0
Synthetic accessibility?

Synthetic accessibility score: from 1 (very easy) to 10 (very difficult)
based on 1024 fragmental contributions (FP2) modulated by size and complexity penaties,
trained on 12'782'590 molecules and tested on 40 external molecules (r2 = 0.94)

2.73

Application In Synthesis of [ 78190-11-1 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 78190-11-1 ]

[ 78190-11-1 ] Synthesis Path-Downstream   1~35

  • 1
  • [ 67-56-1 ]
  • [ 78190-11-1 ]
  • [ 174543-74-9 ]
  • 2
  • [ 501-53-1 ]
  • [ 498-95-3 ]
  • [ 78190-11-1 ]
YieldReaction ConditionsOperation in experiment
82% With sodium hydroxide; C. 1,3-Piperidinedicarboxylic acid, 1-(phenylmethyl)ester Benzyl chloroformate (4 mL) was added dropwise to a cooled (0-5 C.), stirred solution of piperidine-3-carboxylic acid (1.03 g, 8 mmol) in 1 N aqueous NaOH solution (25 mL). During the twenty minute addition, the pH was maintained between 8 and 9 by addition of 1 N NaOH solution. After addition was complete, the mixture was stirred cold for an additional hour, maintaining the pH thoughout this period. The reaction mixture was then extracted with ether (2*40 mL). The ether extracts were discarded and the aqueous layer was acidified with 1 N HCl solution. The acidified aqueous layer was then extracted with dichloromethane (2*40 mL). The combined extracts were dried over magnesium sulfate and concentrated in vacuo to give title acid as a viscous oil (1.73 g, 82%).
113% In diethyl ether; water; Example 437A N-Benzyloxycarbonyl nipecotic acid To a solution of nipecotic acid 10 g, 63.6 mmol) in 1 N NaOH (2.5 g in 64 mL water, 63.6 mmol) at 0 C. was alternately added benzyloxycarbonyl chloride (10.9 mL, 76.5 mmol) in diethyl ether (50 mL) and 1 N NaOH (5 g in 128 mL water, 127.2 mmol) in five portions. The reaction mixture was stirred at 0 C. for 2 hours, and at ambient temperature for 24 hours. Then this was made acidic with 10% HCl and the solid formed was filtered and dried (vacuum oven, 45 C.) to obtain the title compound (18.9 g, 113%). MS (ESI) m/e 264 (M+H)+.
Example 153 A1-(benzyloxycarbonyl)piperidine-3-carboxylic acid; To the solution of piperidine-3-carboxylic acid (1.3 g, 10 mmol) in water (20 mL) was added sodium hydroxide (1.6 g, 40 mmol). Then benzyloxycarbonyl chloride (2.02 g, 12 mmol) was added dropwise at 0 C. The mixture was stirred at 0 C. for 2 h. The resulting mixture was treated with 5N hydrochloric acid to pH=6 and extracted with ethyl acetate, the solvent was removed under reduced pressure and dried in vacuum. 2.2 g of solid of 1-(benzyloxycarbonyl)piperidine-3-carboxylic acid was obtained. LC-MS (ESI) m/z: 264 (M+1)+.
[1246] To a solution of nipecotic acid (10 g, 63.6 mmol) in 1 N NaOH (2.5 g in 64 mL water, 63.6 mmol) at 0 C. was alternately added benzyloxycarbonyl chloride (10.9 mL, 76.5 mmol) in diethyl ether (50 mL) and 1 N NaOH (5 g in 128 mL water, 127.2 mmol) in five portions. The reaction mixture was stirred at 0 C. for 2 h, and at ambient temperature for 24 h. Then this was made acidic with 10% HCl and the solid formed was filtered and dried (vacuum oven, 45 C.) to obtain the title compound (18.9 g, 113%). MS (ESI) m/e 264 (M+H)+.
EXAMPLE 15 ()-BENZYL 3- (6-METHOXY-2-METHYL-1-OXO-4-PHENYL-1, 2-DIHYDROISOQUINOLIN-3-YL) PIPERIDINE-1- carboxylate; Step A: ()-L-F (BENZYLOXY) CARBONYLLPIPERIDINE-3-CARBOXYLIC ACID; To an ice cooled solution of nipecotic acid (10.0 g, 77.5 mmol), sodium hydroxide (3.4 g, 85 mmol), and tetrahydrofuran (50 ML) in water (100 ML) was added by simultaneous dropwise addition benzylchloroformate (13.3 ML, 93 mmol) in tetrahydrofuran (50 ML) and sodium hydroxide (3.4 g, 85 mmol) in water (50 mL). Warmed slowly to room temperature. After 24 hours tetrahydrofuran was removed in vacuo and the resulting aqueous mixture acidified with 3 N hydrochloric acid and extracted with dichloromethane (3X). The combined organic portions were dried with anhydrous magnesium sulfate. Filtration followed by evaporation of the filtrate in vacuo gave the titled COMPOUND. HNMR (CHCIS, 300MHZ) Q 7.45-7. 20 (m, 5H) ; 5.14 (m, 2H); 4.21 (br S, 1H) ; 3.96 (m, 1H), 3.15 (br s, 1H) ; 2.93 (m, 1H) ; 2.51 (m, 1H) ; 2.09 (m, 1H); 1.80-1. 60 (m, 2H); 1.50 (m, 1H) ppm
To a stirred solution of 3-piperidine carboxylic acid (1.48 g, 11.5 mmol) and saturated sodium bicarbonate (40 mL) in tetrahydrofuran (40 mL) at 0 C. was added benzylchloroformate (2.05 g, 12.0 mmol). The mixture was stirred in an ice-bath for 3 h, and then at room temperature for 16 h. The mixture was then cooled to 0 C. and the pH was reduced to ca. 1.0 with 6 M HCl. The mixture was extracted three times with ethyl acetate. The combined extracts were dried with magnesium sulfate, filtered, and concentrated to provide 10.0 g of the title compound as a colorless oil.
Step 1. 1-(Benzyloxycarbonyl)piperidine-3-carboxylic; A 500-mL 4-necked round-bottom flask was charged with a solution of NaOH (8 g, 198.00 mmol, 1.00 equiv, 99%) in H2O (200 mL). To this was added piperidine-3-carboxylic acid (25.8 g, 197.75 mmol, 1.00 equiv, 99%), in small portions at 0 C. Then, a solution of benzyl carbonochloridate (39.2 g, 227.48 mmol, 1.15 equiv, 99%) in Et2O (50 mL) was added at 0 C. over 40 minutes. Then a solution of NaOH (12 g, 1.50 equiv) in H2O (300 mL) was added drop wise with stirring at 0-10 C. The resulting solution was allowed to stir overnight at room temperature. The reaction progress was monitored by TLC (EtOAc/PE=1/1). The pH adjusted to 3 with 10% aqueous HCl. The resulting solution was extracted with ethyl acetate (3×500 mL). Combined organic layers were dried over anhydrous magnesium sulfate and concentrated on a rotary evaporator to afford 1-(benzyloxycarbonyl)piperidine-3-carboxylic acid (58 g) as white solid.
With sodium hydroxide; In water; at 0 - 20℃; Step 1: In a 100 ml three-necked flask, in a stream of nitrogen and under magnetic stirring the nipecotinic acid (3.7 g) was placed in solution in a 3N sodium hydroxide solution (30 ml). The solution was cooled over an ice bath to 0 C. Benzyl chloroformiate (5.8 ml) was added in fractions at 0 C. alternately with a 3N sodium hydroxide solution (9.3 ml) for a time of 45 min. After the addition time the reaction medium was pale yellow and the temperature 3 C. The ice bath was removed and the reaction medium left under stirring at ambient temperature overnight. The aqueous phase was then extracted once with ethyl ether, then acidified to pH 1 using a 3N hydrochloric acid solution. The acidified aqueous phase was extracted three times with ethyl ether. The ether extract phase was successively washed with 1N hydrochloric acid solution, then twice with saturated sodium chloride solution before being dried over magnesium sulphate, filtered then concentrated in vacuo. [0126] The yellow oil obtained (7.35 g, 98%) was used at the following step without any purification step.

  • 3
  • [ 78190-11-1 ]
  • [ 216502-94-2 ]
YieldReaction ConditionsOperation in experiment
With thionyl chloride; In dichloromethane; at 0 - 20℃; Example 153 Bbenzyl-3-(chlorocarbonyl)piperidine-1-carboxylate; To a stirred solution of <strong>[78190-11-1]1-(benzyloxycarbonyl)piperidine-3-carboxylic acid</strong> (1.05 g, 4 mmol) in anhydrous dichloromethane (10 mL), thionyl chloride (0.573 g, 4.81 mmol) was added drop wise at 0 C. After the addition, the solution was stirred at room temperature overnight. Solvent was removed in vacuum to give benzyl-3-(chlorocarbonyl)piperidine-1-carboxylate.
With oxalyl dichloride; N,N-dimethyl-formamide; In dichloromethane; at 0 - 20℃; for 2h; STEP B : ()-BENZYL-3- (CHLOROCARBONYL) PIPERIDINE-L-CARBOXYLATE; To an ice cooled methylene chloride solution of 1- [(Benzyloxy) carbonyl] piperidine-3-carboxylic acid (512 mg, 1.95 mmol) under nitrogen was added oxalyl chloride (0.185 mL, 1.95 mmol) and a few drops N, N-DIMETHYLFORMAMIDE. The reaction flask was warmed slowly to room temperature and after 2 hours the solvent was removed in vacuo. Toluene was added and removed in vacuo (2X) to give the title compound.
YieldReaction ConditionsOperation in experiment
18.0 g (68 mmol; 35%) A. N-Cbz-nipecotic acid STR31 By substantially following the procedures of Example 1,A, 25.0 g (194 mmol) of nipecotic acid was protected with benzylchloroformate under basic conditions to afford 18.0 g (68 mmol; 35%) of analytically pure N-Cbz-nipecotic acid as a white solid. FD-MS, m/e 264 (MH+, 100). IR (KBr) 3092, 2950, 1732, 1649, 1449, 1273, 1155, 696 cm-1. Analytical Calculated for C14 H17 N1 O4: C 63.87, H 6.51, N 5.32 Found: C 63.98, H 6.58, N 5.36
18.0 g (68 mmol; 35%) A N-Cbz-nipecotic acid STR54 By substantially following the procedures of Example 15, A, 25.0 g (194 mmol) of nipecotic acid was protected with benzylchloroformate under basic conditions to afford 18.0 g (68 mmol; 35%) of analytically pure N-Cbz-nipecotic acid as a white solid. FD-MS, m/e 264 (MH+, 100). IR (KBr) 3092, 2950, 1732, 1649, 1449, 1273, 1155, 696 cm-1. Analytical Calculated for C14 H17 N1 O4: C 63.87, H 6.51, N 5.32 Found: C 63.98, H 6.58, N 5.36
  • 5
  • [ 78190-11-1 ]
  • (S)-3-{4-Methoxy-3-[(piperidine-3-carbonyl)-amino]-phenyl}-2-(2,2,2-trifluoro-acetylamino)-propionic acid [ No CAS ]
  • 6
  • [ 78190-11-1 ]
  • (S)-3-{4-Methoxy-3-[(piperidine-3-carbonyl)-amino]-phenyl}-2-(2,2,2-trifluoro-acetylamino)-propionic acid tert-butyl ester [ No CAS ]
  • 7
  • [ 78190-11-1 ]
  • [ 216502-71-5 ]
  • 8
  • [ 78190-11-1 ]
  • [ 174543-80-7 ]
  • 9
  • [ 78190-11-1 ]
  • [ 174543-79-4 ]
  • 10
  • [ 78190-11-1 ]
  • [ 174543-78-3 ]
  • 11
  • [ 78190-11-1 ]
  • [ 174543-81-8 ]
  • 12
  • [ 78190-11-1 ]
  • [ 174543-82-9 ]
  • 13
  • [ 98946-18-0 ]
  • [ 78190-11-1 ]
  • [ 301180-04-1 ]
YieldReaction ConditionsOperation in experiment
96% With boron trifluoride diethyl etherate; In tetrahydrofuran; at 20℃; for 18h; [1247] A solution of Example A (18 g, 62 mmol). in THF (250 mL, 0.25 M) was treated with trichloroacetimidate (28 mL, 155 mmol) and BF3.Et2O (18 mL, 1 mL/g) at ambient temperature. After 18 h the reaction mixture was quenched with solid NaHCO3 followed by water and stirred vigorously. Then the solvent was removed, and partitioned with ethyl acetate (250 mL). The organic layer was separated and washed with brine (3×80 mL), dried (Na2SO4) and evaporated to dryness under reduced pressure to obtain the crude product. The title compound (19.2 g, 96%) was obtained by flash chromatography on silica gel eluting with 20% acetone:hexane. MS (ESI) m/e 320 (M+H)+.
  • 14
  • C35H38N4O3 [ No CAS ]
  • [ 78190-11-1 ]
  • piperidine-3-carboxylic acid[(2S,5S)-5-naphthalen-2-ylmethyl-3,6-dioxo-1-(4-phenoxy-benzyl)-piperazin-2-ylmethyl]-piperidin-4-ylmethyl-amide [ No CAS ]
YieldReaction ConditionsOperation in experiment
Step 1: To the corresponding Cbz-protected product from general procedure G, step D (323 mg, 0.441 mmol), N-cbz-piperidin-3-ylcarboxylic acid (370 mg, 1.405 mmol), and TBTU (450 mg, 1.400 mmol) in THF (15 ml) is added at room temperature N-ethyldiisopropylamine (0.3 ml, 1.718 mmol) and the mixture is stirred at room temperature overnight and then heated to reflux for 8 h. Sat. aq. sodium bicarbonate (40 ml) is added, the mixture stirred for 15 min., and then extracted with ether (3 x 70 ml). The combined org. layers are dried over sodium sulfate, concentrated in vacuo, and the residue purified by flash chromatography (silica, dichloromethane/MeOH 20:1) to give a mixture of the 2 diastereoisomeric bis-Cbz-protected intermediates. Flash chromatography (silica, ethyl acetate/MeOH 100:0 - 50:1) afforded the 2 diastereoisomers (23 % and 16 %). ESI-MS: (M+H)+ = 942. Step 2: The 2-Cbz-protected diastereoisomers are submitted separately to hydrogenation in MeOH (20 ml) at 50 psi in the presence of Pd/C (10 %) at 50 C for 2 h. The catalyst is removed by filtration and the filtrate is concentrated in vacuo to give the product (41 % and 35 %). ESI-MS: (M+H)+ = 674
  • 15
  • [ 17284-97-8 ]
  • [ 78190-11-1 ]
  • C18H20ClN5O3 [ No CAS ]
YieldReaction ConditionsOperation in experiment
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In dichloromethane; at 20℃; for 16h; A mixture of <strong>[78190-11-1]1-[(benzyloxy)carbonyl]piperidine-3-carboxylic acid</strong> (2.44 g), 3-chloro-6-hydrazinopyridazine (1.34g), WSCD hydrochloride (2.13 g) and methylene chloride (60 ml) was stirred at room temperature for 16 hours. The reaction solution was concentrated under reduced pressure and extracted with ethyl acetate. The extract was washed successively with water and brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The resultant reside was combined with acetic acid (80 ml), stirred at 100C for 2 days, and then the solvent was distilled off under reduced pressure. The resultant crude crystals were washed with ethanol, and stirred with heating under reflux in piperidine (10 ml) for 3 hours. The reaction solution was concentrated under reduced pressure, and purified by silica gel column chromatography (eluent: chloroform:methanol=97:3). The resultant colorless solids were combined with ethanol (40 ml) and 10% palladium-carbon (150 mg), and stirred under hydrogen atmosphere at room temperature for 6 hours, and then the catalyst was filtered off. The resultant filtrate was concentrated under reduced pressure to obtain 6-piperidin-1-yl-3-piperidin-3-yl-1,2,4-triazolo[4,3-b]pyridazine (1.18 g) as a colorless amorphous.
  • 16
  • [ 78190-11-1 ]
  • [ 75-03-6 ]
  • [ 310454-53-6 ]
YieldReaction ConditionsOperation in experiment
With potassium carbonate; In N,N-dimethyl-formamide; at 20℃; for 5h; Reference Example 25 A mixture of <strong>[78190-11-1]1-[(benzyloxy)carbonyl]-3-piperidinecarboxylic acid</strong> (20.0 g), iodoethane (14.2 g), potassium carbonate (15.7 g), and N,N-dimethylformamide (150 mL) was stirred at room temperature for 5 hours. The reaction solution was poured into water and extracted with ethyl acetate. The extracts were washed with water, dried and concentrated. The obtained residue was purified by silica gel column chromatography to obtain ethyl 1-[(benzyloxy)carbonyl]-3-piperidinecarboxylate (20.0 g). 1H-NMR (300 MHz, CDCl3) delta: 1.24 (3H, t, J=7.5 Hz), 1.45-1.74 (3H, m), 2.02-2.08 (1H, m), 2.42-2.48 (1H, m), 2.85-3.13 (2H, m), 3.95-4.02 (1H, m), 4.12 (2H, q, J=7.5 Hz), 4.18-4.30 (1H, m), 5.12 (2H, s), 7.27-7.36 (5H, m).
  • 17
  • [ 5468-37-1 ]
  • [ 78190-11-1 ]
  • [ 874361-32-7 ]
YieldReaction ConditionsOperation in experiment
With 1-propan-phosphonic acid anhydride; triethylamine; In tetrahydrofuran; ethyl acetate; at 20℃; for 16h; A mixture of piperidine-1,3-dicarboxylic acid 1-benzyl ester (3.0 g, 11.4 mmol), triethylamine (4.62 g, 45.6 mmol), and 1-propanphosphonic acid anhydride (3.63 g, 11.4 mol, 6.80 mL of a 50% w/w solution in ethyl acetate) and 2 aminoacetophenone hydrochloride (1.96 g, 11.4 mmol) in THF (55 mL) was stirred at rt for 16 h. The mixture was then concentrated, and the residue was dissolved in CH2Cl2. The solution was washed with 1 M NaOH, dried through cotton, and concentrated. Silica gel chromatography eluding with 1:2 hexanes/ethyl acetate gave the title compound as a pale yellow solid.
  • 18
  • [ 27550-90-9 ]
  • isobutyl chioroformate [ No CAS ]
  • [ 6638-79-5 ]
  • [ 78190-11-1 ]
  • [ 405239-72-7 ]
YieldReaction ConditionsOperation in experiment
In tetrahydrofuran; To a cooled (-15 C. to -20 C.) and stirred solution of <strong>[78190-11-1]1-[(benzyloxy)carbonyl]-3-piperidinecarboxylic acid</strong> (4.0 g, 15.2 mmol) in dry THF (50 mL) including methylmorpholine (2 mL) was added dropwise a solution of isobutyl chioroformate (2.28 g, 16.7 mmol) in THF (10 mL). After the mixture was stirred at the same temperature for 20 min, a solution of N,O-dimethylhydroxylamine hydrochloride (1.63 g, 16.7 mmol) in THF (20 mL) including methylmorpholine (2 mL) was added. The reaction mixture was allowed to warm to room temperature, and then stirred for 16 hrs. The reaction mixture was concentrated under reduced pressure and partitioned between ethyl acetate and water. The separated organic phase was washed with 1N HCl, saturated NaHCO3, and brine, successively. The organic phase was dried over Na2SO4, filtered, and concentrated under reduced pressure to give benzyl 3-[methoxy(methyl)amino]carbonyl)-1-piperidinecarboxylate as a colorless oil (4.7 g, yield; quant.).
  • 19
  • [ 948-65-2 ]
  • [ 79-37-8 ]
  • [ 925-90-6 ]
  • [ 78190-11-1 ]
  • [ 256446-54-5 ]
YieldReaction ConditionsOperation in experiment
15.6 g (35.6 mmol; 63%) With ammonium chloride;SiO2; In diethyl ether; dichloromethane; ethyl acetate; N,N-dimethyl-formamide; toluene; benzene; A. 3-(2-Phenyl-1H-indole-3-carbonyl)piperidine-1-carboxylic acid benzyl ester A solution of 14.8 g (56.3 mmol) of N-benzyloxycarbonylnipecotic acid in anhydrous dichloromethane (100 ml) under an atmosphere of nitrogen was treated with oxalyl chloride (7.4 ml, 84.4 mmol) followed by 2 drops of N,N-dimethylformamide. The reaction mixture was stirred at room temperature for 90 min at which time the dichloromethane was evaporated in vacuo. The residue was dissolved in anhydrous toluene (75 ml) and the resulting solution evaporated in vacuo. The residue was dissolved in anhydrous benzene (50 ml) to give Solution A. A solution of 21.7 g (113 mmol) of 2-phenylindole in anhydrous benzene (250 ml) under an atmosphere of nitrogen was added using a cannula to a solution of ethylmagnesium bromide (37.5 ml of a 3M solution in diethyl ether, 113 mmol) and the resulting mixture stirred at room temperature for 15 min to give Solution B. Solution A was added in one portion to rapidly stirred solution B and the resulting mixture stirred at room temperature for 30 min. The reaction was quenched by the addition of saturated ammonium chloride solution (200 ml). The organic layer was separated, dried over MgSO4 and evaporated in vacuo. The residue was purified by flash chromatography (SiO2; 10% EtOAc in hexanes then 20% EtOAc in hexanes) to afford 15.6 g (35.6 mmol; 63%) of 3-(2-phenyl-1H-indole-3-carbonyl)piperidine-1-carboxylic acid benzyl ester as a clear oil. deltaH (360 MHz; CDCl3) 0.91-1.07 (1H, m, aliphatic), 1.50-1.65 (2H, m, aliphatics), 1.88-1.96 (1H, m, aliphatic), 2.58-2.82 (2H, m, aliphatics), 2.86-3.08 (1H, m, aliphatic), 3.92-4.06 (1H, m, aliphatic), 4.08-4.17 (1H, m, aliphatic), 5.05 (2H, d, J 3.8, PhCH2), 7.24-7.52 (13H, m, aromatics), 8.24-8.30 (1H, m, aromatic), 8.75 (1H, br s, NH); m/z (ES+) 439 (M++H, 100%).
  • 20
  • [ 501-53-1 ]
  • [ 118156-93-7 ]
  • [ 78190-11-1 ]
YieldReaction ConditionsOperation in experiment
With sodium hydroxide; In 1,4-dioxane; hexane; To a cooled (0 C.) and stirred solution of nipecotinic acid (3.0 g, 23.3 mmol) in 1,4-dioxane (12 mL) was added 2N NaOH solution (24.0 mL, 48.0 mmol) followed by a solution of benzyl chloroformate (3.96 g, 23.2 mmol) in 1,4-dioxane (12 mL). The reaction mixture was allowed to warm to room temperature, and the stirring was continued for 3 hrs. The mixture was concentrated under reduced pressure. The residue was diluted with water and acidified with 1H HCl (pH 3-4). The mixture was extracted with ethyl acetate, and the separated organic phase was washed with brine, dried over Na2SO4, filtered, and evaporated. The resulting white solid was suspended in hexane, collected by filtration, washed with hexane, and dried under reduced pressure to give 1-[(benzyloxy)carbonyl]-3-piperidinecarboxylic acid as a white solid (4.4 g, yield; 71%).
  • 21
  • [ 702692-02-2 ]
  • [ 78190-11-1 ]
  • C57H59N5O8 [ No CAS ]
YieldReaction ConditionsOperation in experiment
16% With benzotriazol-1-ol; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; at 20℃; for 8h;Heating / reflux; Step 1: To the corresponding Cbz-protected product from general procedure G, step D (323 mg, 0.441 mmol), N-Cbz-piperidin-3-yl carboxylic acid (370 mg, 1.405 mmol), and TBTU (450 mg, 1.400 mmol) in THF (15 ml) is added at room temperature N-ethyldiisopropylamine (0.3 ml, 1.718 mmol) and the mixture is stirred at room temperature overnight and then heated to reflux for 8 h. Sat. aq. sodium bicarbonate (40 ml) is added, the mixture stirred for 15 min., and then extracted with ether (3×70 ml). The combined org. layers are dried over sodium sulfate, concentrated in vacuo, and the residue purified by flash chromatography (silica, dichloromethane/MeOH 20:1) to give a mixture of the 2 diastereoisomeric bis-Cbz-protected intermediates. Flash chromatography (silica, ethyl acetate/MeOH 100:0?50:1) afforded the 2 diastereoisomers (23% and 16%). ESI-MS: (M+H)+=942.
  • 22
  • 3-carbamoylbenzene-1,2-diaminium dichloride [ No CAS ]
  • [ 78190-11-1 ]
  • C21H24N4O4 [ No CAS ]
  • 23
  • [ 78190-11-1 ]
  • [ 19961-27-4 ]
  • [ 953821-03-9 ]
YieldReaction ConditionsOperation in experiment
100% Reference Example 48 benzyl 3-[ethyl(isopropyl)amino]carbonyl}piperidine-1-carboxylate To a solution of <strong>[78190-11-1]1-[(benzyloxy)carbonyl]piperidine-3-carboxylic acid</strong> (3.00 g, 11.4 mmol) and DMF (2 drops) in THF (60 mL) was added oxalyl chloride (1.47 mL, 17.1 mmol) under ice-cooling, and the mixture was concentrated under reduced pressure after 1 hr. The obtained residue was dissolved in THF (60 mL), ethylisopropylamine (4.14 mL, 34.2 mmol) was added under ice-cooling, and the mixture was stirred for 30 min. The solvent was evaporated under reduced pressure, ethyl acetate was added to the residue, and the mixture was washed with 1N hydrochloric acid, 10% potassium carbonate and saturated brine, and dried over anhydrous sodium sulfate. The solution was purified by asic silica gel to give the title compound (3.79 g, quantitative). The compound was used for Reference Example 49 without purification.
  • 24
  • [ 78190-11-1 ]
  • [ 74-89-5 ]
  • [ 1161364-24-4 ]
YieldReaction ConditionsOperation in experiment
61% With dmap; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; In dichloromethane; at 20℃; for 48h; Preparation of Intermediates 7, 8, and 9Step 1A mixture of an appropriate amine or (1.0 mmol), N-(benzyloxycarbonyl)nipecotic acid (1.0 mmol), HBTU (1.0 mmol), a catalytic amount of 4-dimethylaminopyridine (DMAP), iV-ethyl- diisopropylethylamine (1.25 mmol), and dry dichloromethane (2 mL) was stirred at room temperature for two days. The solvent was removed under reduced pressure. EtOAc (25 mL) was added and the organic phase was washed with 5 % aqueous citric acid, saturated aqueous <n="67"/>NaHCO3 solution, and brine. After drying (MgSO4), the solvent was removed under reduced pressure. The desired Z-protected nipecotamide derivative was purified by preparative TLC, flash chromatography, or preparative HPLC.Methylamine and ethylamine were applied as 2 M solutions in THF. N-(Benzyloxycarbonyl)- nipecotic acid was commercially available.Benzyl S-Cmethylcarbamoy^piperidine-l-carboxylate: Yield 61 %. 1H NMR (CDCl3, 300 MHz): delta = 1.34-1.53 (m, 1 H), 1.57-1.94 (m, 3 H), 2.25 (m, 1 H, -COCH[CH2J2), 2.73 (d, J= 4.8 Hz, 3 H, -NHCH3), 3.00 (m, 1 H), 3.16 (m, 1 H), 3.91 (m, 1 H), 4.03 (m, 1 H), 5.09 (d, J= 12.5 Hz, 1 H, =NCH2CO), 5.14 (d, J = 12.5 Hz, 1 H, =NCH2CO-), 6.03 (s, br., 1 H, NH), 7.24-7.39 (m, 5 H, Ph). Piperidine ring proton signals were broad and not well resolved.Benzyl 3-(ethylcarbamoyl)piperidine-l-carboxylate: Yield 54 %. 1H NMR (CDCl3, 300 MHz): delta = 1.07 (t, J= 7.2 Hz, 3 H, -CH2CH3), 1.34-1.52 (m, 1 H), 1.57-1.93 (m, 3 H), 2.22 (m, 1 H, -COCH[CH2J2), 3.00 (m, 1 H), 3.16 (m, 1 H), 3.21 (q, J = 7.2 Hz, 1 H, -CH2CH3), 3.23 (q, J= 7.2 Hz, 1 H, -CH2CH3), 3.89 (m, 1 H), 4.02 (m, 1 H), 5.09 (d, br., J= 12.5 Hz, 1 H, =NCH2CO), 5.13 (d, br., J= 12.5 Hz, 1 H, =NCH2CO-), 6.01 (s, br., 1 H, NH), 7.24-7.39 (m, 5 H, Ph). Piperidine ring proton signals were broad and not well resolved.Benzyl 3-(pyrrolidine-l-carbonyl)piperidine-l-carboxylate: Yield 60 %. 1H NMR (CDCl3, 300 MHz): delta = 1.37-1.58 (m, 1 H), 1.64-2.02 (m, 7 H), 2.49 (m, 1 H, -COCH[CH2J2), 2.79 (m, 1 H), 2.95 (m, 1 H), 3.28-3.66 (m, 4 H), 4.20 (m, 2 H), 5.11 (d, J = 12.3 Hz, 1 H, <n="68"/>=NCH2CO), 5.15 (d, J= 12.3 Hz, 1 H, =NCH2CO-), 7.27-7.41 (m, 5 H, Ph). Piperidine ring proton signals were broad and not well resolved.
  • 25
  • [ 117326-21-3 ]
  • [ 124-46-9 ]
  • [ 78190-11-1 ]
  • [ 688782-61-8 ]
  • 26
  • [ 110-89-4 ]
  • [ 17284-97-8 ]
  • [ 78190-11-1 ]
  • [ 596824-17-8 ]
YieldReaction ConditionsOperation in experiment
A mixture of <strong>[78190-11-1]1-[(benzyloxy)carbonyl]piperidine-3-carboxylic acid</strong> (2.44 g), 3-chloro-6-hydrazinopyridazine (1.34g), WSCD hydrochloride (2.13 g) and methylene chloride (60 ml) was stirred at room temperature for 16 hours. The reaction solution was concentrated under a reduced pressure and extracted with ethyl acetate. The extract was washed successively with water and saturated brine, dried over anhydrous sodium sulfate, and concentrated under a reduced pressure. The resultant reside was combined with acetic acid (80 ml), stirred at 110C for 2 days, and then the solvent was evaporated under a reduced pressure. The resultant crude crystals were washed with ethanol and stirred with heating under reflux in piperidine (10 ml) for 3 hours. The reaction solution was concentrated under a reduced pressure and purified by a silica gel column chromatography (eluent: chloroform:methanol = 97:3). The resultant colorless solids were combined with ethanol (40 ml) and 10% palladium-carbon (150 mg) and stirred under an atmosphere of hydrogen at room temperature for 6 hours, and then the catalyst was removed by filtration. The resultant filtrate was concentrated under a reduced pressure to obtain 6-piperidin-1-yl-3-piperidin-3-yl-1,2,4-triazolo[4,3-b]pyridazine (1.18 g) as a colorless amorphous substance.
  • 27
  • [ 186581-53-3 ]
  • [ 78190-11-1 ]
  • [ 1271809-00-7 ]
YieldReaction ConditionsOperation in experiment
To a solution of acid 17.1 (6.1 g) in THF (30 mL) cooled to -20 C was added NMM (2.55 mL) followed by the dropwise addition of IBCF (3.04 mL). The resulting mixture was allowed to warm to 0 C and stirred for lhr. The resulting suspension was filtered, and the filtrate was collected, cooled to 0 C, and treated with a CH2 2 solution in ether (50 mL). The above solution of CH2 2 in ether was prepared from 13.7 g of l -methyl-3-nitro- nitrosoguanidine and 12.3 g of KOH in mixture of 100 mL of H2O and ether (1 : 1). The mixture was stirred at RT for 12 h and quenched by the dropwise addition of 4.0 N HC1 in dioxane (20 mL) at 0 C. The mixture was further stirred for 1 h. The organic phase was washed with H2O, brine and dried (MgSC^), filtered and concentrated in vacuo. The resulting residue was purified by column chromatography (gradient 30 % EtOAc in hexane) to give compound 17.3 (4.5 g).
  • 28
  • [ 78190-11-1 ]
  • [ 1271802-71-1 ]
  • 29
  • [ 78190-11-1 ]
  • [ 1260676-04-7 ]
  • 30
  • [ 78190-11-1 ]
  • [ 1271809-02-9 ]
  • 31
  • [ 78190-11-1 ]
  • [ 1271809-04-1 ]
  • 32
  • [ 78190-11-1 ]
  • [ 1271809-06-3 ]
  • 33
  • [ 6638-79-5 ]
  • [ 78190-11-1 ]
  • [ 405239-72-7 ]
YieldReaction ConditionsOperation in experiment
93% To a solution of 1-benzyloxycarbonylpiperidinc-3-carboxylic acid (10 g, 43.6 mmol) in THF(100 mL) at 0 C was addcd 1,V-carbonyldiimidazole (38.57 g, 52.3 mmol). The mixture wasstirred at 0 C for 1 h. Triethylamine (7.13 g, 69.8 mmol) was added followed by Nmethoxymethanamine hydrochloride (6.38 g, 65.4 mmol). The mixture was allowed to warm to room temperature and stirred for 16 h. The mixture was diluted with EtOAc, washed with 0.5 N HC1, sat. NaHCO3, and brine. The organic layer was dried (Na2SO4), filtered and concentrated. The crude product was purified by silica flash chromatography (0-30% EtOAc/heptane) to givethe title compound (11.03 g, 93% yield) as a colorless oil. ?H NMR (400 MHz, Chloroform-d)7.40 -7.28 (m, 5H), 5.20-5.07 (m, 211), 4.15 (d,J 34.48 Hz, 2H), 3.66 (ci, Jr 38.49 Hz, 3H),3.16 (s, 3H), 2.94 (d,J= 12.21 Hz, 111), 1.99- 1,88 (m, 111), 1.79-1.62 (m, 2H), 1.57 (s, 211).LCMS (EST) mz 307.2 [M+Hj.
83% With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; In dichloromethane; at 2 - 20℃; Step 2. Benzyl 3-(methoxy(methyl)carbamoyl)piperidine-1-carboxylate; A 1000-mL 3-necked round-bottom flask was charged with a solution of N-methoxymethan amine hydrochloride (21.45 g, 217.7 mmol, 1.10 equiv, 99%) in dichloromethane (DCM) (250 mL). To the mixture was added Et3N (22.22 g, 217.80 mmol, 1.10 equiv, 99%) at 0-10 C., followed by addition <strong>[78190-11-1]1-(benzyloxycarbonyl)piperidine-3-carboxylic acid</strong> (58 g, 220.3 mmol, 1.00 equiv) in dichloromethane (150 mL) drop wise at 2 C. over 2 hr period. To this mixture was added EDC.HCl (42.02 g, 217.80 mmol, 1.10 equiv, 99%) in several batches while maintaining the temperature below 5 C. The resulting solution was allowed to stir at room temperature overnight. The progress was monitored by TLC (EtOAc: PE=1:1). Upon completion, the reaction was then quenched by the addition of water (500 mL). The resulting mixture was then extracted with dichloromethane (2×500 mL). Combined organic layers were dried over anhydrous magnesium sulfate and concentrated on a rotary evaporator. The resulting residue was purified by a silica gel column chromatography eluted with ethyl acetate/petroleum ether (1:10) affording benzyl 3-(methoxy(methyl)carbamoyl)piperidine-1-carboxylate as a white syrup (57 g, 83%).
  • 34
  • [ 78190-11-1 ]
  • [ 502639-39-6 ]
  • 35
  • [ 78190-11-1 ]
  • [ 1352654-67-1 ]
 

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Technical Information

Categories

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[ 78190-11-1 ]

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[ 78190-11-1 ]

Piperidines

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