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Chemical Structure| 199296-40-7 Chemical Structure| 199296-40-7

Structure of 199296-40-7

Chemical Structure| 199296-40-7

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Product Details of [ 199296-40-7 ]

CAS No. :199296-40-7
Formula : C11H14N2O3
M.W : 222.24
SMILES Code : O=C(OC(C)(C)C)NC1=NC=C(C=O)C=C1
MDL No. :MFCD08064228
InChI Key :WZROBBWIJBBWQP-UHFFFAOYSA-N
Pubchem ID :22034247

Safety of [ 199296-40-7 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H317-H319
Precautionary Statements:P280-P305+P351+P338

Computational Chemistry of [ 199296-40-7 ] Show Less

Physicochemical Properties

Num. heavy atoms 16
Num. arom. heavy atoms 6
Fraction Csp3 0.36
Num. rotatable bonds 5
Num. H-bond acceptors 4.0
Num. H-bond donors 1.0
Molar Refractivity 59.87
TPSA ?

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

68.29 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

1.65
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

1.21
Log Po/w (WLOGP)?

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

2.05
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.

0.62
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

1.35
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

1.38

Water Solubility

Log S (ESOL):?

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

-1.93
Solubility 2.63 mg/ml ; 0.0118 mol/l
Class?

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

Very soluble
Log S (Ali)?

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

-2.24
Solubility 1.28 mg/ml ; 0.00574 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

-2.93
Solubility 0.26 mg/ml ; 0.00117 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.

-6.8 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.

0.55

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

1.0 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<1.0
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)

2.21

Application In Synthesis of [ 199296-40-7 ]

* 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 [ 199296-40-7 ]

[ 199296-40-7 ] Synthesis Path-Downstream   1~35

  • 1
  • [ 201230-82-2 ]
  • [ 159451-66-8 ]
  • [ 199296-40-7 ]
YieldReaction ConditionsOperation in experiment
100% With N,N,N,N,-tetramethylethylenediamine; hydrogen; catacxium A;palladium diacetate; In tetrahydrofuran; at 100℃; under 3750.38 Torr; for 16h; 6.0 g (21 .3 mmol) of (5-Bromo-pyridin-2-yl)-carbamic acid tert-butyl ester was dissolved in THF (55 mL). A solution of 4.9 mL (32 mmol) TMEDA, 241 mg (0.64 mmol)CataCxium A, and 48 mg (0.213 mmol) Pd(OAc)2 in THF (5 mL) was added and the mixture was treated with 5 bar synthesis gas at 100 C for 16 h.After cooling, the salts were filter off and the mixture was poured onto water (200 mL). The precipitated was filtered and rinsed with additional water to yield 4.8 g (quant.) HPLC: tR = 1 .2 min (YMC J'sphere ODS H 80 20 x 2.1 mm, 4 muetatauiota, A: H2O + 0.05 % TFA, B: MeCN, 4% - 95 % in 2.45 min, 1 mL/min, 30 C.
100% With N,N,N,N,-tetramethylethylenediamine; hydrogen; palladium diacetate; catacxium A; In tetrahydrofuran; at 100℃; under 3750.38 Torr; for 16h; EXAMPLE 2 (5-Formyl-pyridin-2-yl)-carbamic acid tert-butyl ester 6.0 g (21.3 mmol) of (5-Bromo-pyridin-2-yl)-carbamic acid tert-butyl ester was dissolved in THF (55 mL). A solution of 4.9 mL (32 mmol) TMEDA, 241 mg (0.64 mmol) CataCxium A, and 48 mg (0.213 mmol) Pd(OAc)2 in THF (5 mL) was added and the mixture was treated with 5 bar synthesis gas at 100 C. for 16 h. After cooling, the salts were filter off and the mixture was poured onto water (200 mL). The precipitated was filtered and rinsed with additional water to yield 4.8 g (quant.) HPLC: tR=1.2 min (YMC J'sphere ODS H 80 20*2.1 mm, 4 mum, A: H2O+0.05% TFA, B: MeCN, 4%-95% in 2.45 min, 1 mL/min, 30 C.
  • 2
  • [ 199296-40-7 ]
  • [ 169280-83-5 ]
  • 3
  • [ 199296-40-7 ]
  • [ 304873-96-9 ]
  • 4
  • [ 199296-40-7 ]
  • [ 637776-45-5 ]
  • 5
  • [ 199296-40-7 ]
  • 3-(6-amino-pyridin-3-yl)-2-[1-(3-methyl-butyl)-1<i>H</i>-imidazol-4-yl]-propionic acid [ No CAS ]
  • 6
  • [ 199296-40-7 ]
  • [ 497159-99-6 ]
  • 7
  • [ 199296-40-7 ]
  • 3-(6-amino-pyridin-3-yl)-2-[1-(3,3-dimethyl-butyl)-1<i>H</i>-imidazol-4-yl]-propionic acid [ No CAS ]
  • 8
  • [ 199296-40-7 ]
  • [ 749216-80-6 ]
  • 9
  • [ 199296-40-7 ]
  • [ 749216-99-7 ]
  • 10
  • [ 199296-40-7 ]
  • [ 749217-22-9 ]
  • 11
  • [ 79-37-8 ]
  • [ 144186-11-8 ]
  • [ 199296-40-7 ]
YieldReaction ConditionsOperation in experiment
With diisobutylaluminium hydride; triethylamine; In hexane; dichloromethane; water; dimethyl sulfoxide; Step B 2-(t-Butoxycarbonylamino)-5-pyridinecarboxaldehyde To a solution of methyl-6-(tert-butoxycarbonylamino)-nicotinate (2.20 g, 8.72 mmol) in anhydrous THF (50 mL), cooled to -30 C. was added DIBAL-H (1.0M in hexane, 34. 8 mL, 34.8 mmol) dropwise. After 1 h, 40 mL of a saturated solution of Rochelle salts was added and stirred vigorously for 10 h. The volatiles were removed in vacuo and the aqueous layer was extracted with methylene chloride (3*50 mL). The organic layer was washed with water (1*50 mL) and brine (1*50 mL), dried over MgSO4, filtered, and concentrated in vacuo. The residue was used directly in the next step. To a solution of oxalyl chloride (4.12 g, 32.46 mmol) in methylene chloride (30 mL), cooled to -78 C., was added DMSO (2.54 g, 32.46 mmol) dissolved in methylene chloride (9 mL) dropwise. After 20 minutes, the crude alcohol (1.82 g, 8.11 mmol) dissolved in 35 mL of methylene chloride was added followed by triethylamine (4.92 g, 48.66 mmoL). The ice bath was removed and the reaction stirred for 1 hr at rt, then water (30 mL) was added. The layers were separated and the aqueous layer was extracted with methylene chloride (2*50 mL). The organic layer was washed with water (1*50 mL) and brine (1*50 mL), dried over MgSO4, filtered, and concentrated in vacuo. The residue was purified by flash column chromatography (30*150 mm column of SiO2, EtOAc/methylene chloride 1:11) to give the title compound as a colorless solid: 1 H NMR (400 MHz, CDCl3) d 1.55 (s, 9H), 7.79 (br s, 1H), 8.13-8.14 (m, 2H), 8.71 (dd, J=1.1 and 1.8 Hz, 1H), 9.96 (s, 1H).
With diisobutylaluminium hydride; triethylamine; In hexane; dichloromethane; water; dimethyl sulfoxide; Step B: 2-(t-Butoxycarbonylamino)-5-pyridinecarboxaldehyde To a solution of methyl-6-(tert-butoxycarbonylamino)-nicotinate (2.20 g, 8.72 mmol) in anhydrous THF (50 mL), cooled to -30C was added DIBAL-H (1.0M in hexane, 34.8 mL, 34.8 mmol) dropwise. After 1 h, 40 mL of a saturated solution of Rochelle salts was added and stirred vigorously for 10 h. The volatiles were removed in vacuo and the aqueous layer was extracted with methylene chloride (3 x 50 mL). The organic layer was washed with water (1 x 50 mL) and brine (1 x 50 mL), dried over MgSO4, filtered, and concentrated in vacuo. The residue was used directly in the next step. To a solution of oxalyl chloride (4.12 g, 32.46 mmol) in methylene chloride (30 mL), cooled to -78 C, was added DMSO (2.54 g, 32.46 mmol) dissolved in methylene chloride (9 mL) dropwise. After 20 minutes, the crude alcohol (1.82 g, 8.11 mmol) dissolved in 35 mL of methylene chloride was added followed by triethylamine (4.92 g, 48.66 mmoL). The ice bath was removed and the reaction stirred for 1 hr at rt, then water (30 mL) was added. The layers were separated and the aqueous layer was extracted with methylene chloride (2 x 50 mL). The organic layer was washed with water (1 x 50 mL) and brine (1 x 50 mL), dried over MgSO4, filtered, and concentrated in vacuo. The residue was purified by flash column chromatography (30 x 150 mm column of SiO2, EtOAc/methylene chloride 1:11) to give the title compound as a colorless solid: 1H NMR (400 MHz, CDCl3) d 1.55 (s, 9H), 7.79 (br s, 1H), 8.13-8.14 (m, 2H), 8.71 (dd, J = 1.1 and 1.8 Hz, 1H), 9.96 (s, 1H).
  • 12
  • 4-hydrazino-1-(2-methoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidine hydrochloride [ No CAS ]
  • [ 76-05-1 ]
  • [ 199296-40-7 ]
  • 6-aminonicotinaldehyde [1-(2-methoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-yl]hydrazone trifluoroacetate [ No CAS ]
YieldReaction ConditionsOperation in experiment
A [MIXTURE OF 4-HYDRAZINO-1- (2-METHOXYPHENYL)-1 H-PYRAZOLO [3,] 4-d] pyrimidine hydrochloride (Intermediates Example C) (0.070 g, 0.24 [MMOL),] tert-butyl 5- [FORMYLPYRIDIN-2-YLCARBAMATE] (0.106 [G,] 0.48 [MMOL),] a drop of [PYRROLIDINE,] and 7 mL of absolute ethanol was heated at reflux for 6 hours. The cooled reaction mixture was filtered. The collected solid was washed with ethanol, dried under vacuum and treated with 1 mL of trifluoroacetic acid at room temperature for 30 minutes, then evaporated to dryness. The residue was taken up in methanol and the mixture filtered. The filtrate was evaporated and the residue purified by reverse phase HPLC (C18 column with 5-50% [ACETONITRILE/WATER/0.] 1% formic acid gradient) to give 5 mg of pure product. 'H NMR [(DMSO) 8] 8.58 (d, 1 H), 8. 52 [(DD,] 1 H), 8.30 (m, 2H), 8.19 (s, 1 H), 7.53 (t, 1 H), 7.40 [(DD,] 1 H), 7.26 (d, 1 H), 7.10 (m, 2H), 5.40 (br s, [2H),] 3.70 (s, 3H) ppm ; ES-MS m/z 361 [(MH+)]
  • 13
  • [ 169280-83-5 ]
  • [ 199296-40-7 ]
YieldReaction ConditionsOperation in experiment
With pyridine-SO3 complex; dimethyl sulfoxide; triethylamine; at 20℃; Production Example 1 To a mixture of tert-butyl [5-(hydroxymethyl)pyridine-2-yl]carbamate (2.13 g), triethylamine (5.3 ml), and DMSO (15 ml), a sulfur trioxide-pyridine complex (3.02 g) in a DMSO solution (15 ml) was added dropwise, followed by stirring at room temperature for 4.5 hours. To the reaction mixture, water was added, followed by extraction with ethyl acetate. The organic layer was washed with a saturated aqueous solution of sodium chloride, and dried over anhydrous magnesium sulfate. After removing the desiccant, the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate) to obtain 2.00 g of tert-butyl (5-formylpyridin-2-yl)carbamate.
  • 14
  • [ 199296-40-7 ]
  • tert-butyl N-[[5-hydroxyiminomethyl]-2-pyridyl]carbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
With hydroxylamine hydrochloride; sodium acetate; In ethanol; water; at 20℃; for 16h; Intermediate 19 (1-19)tert-Butyl N-[5 -hydroxyiminomethyl] -2-pyridyl] carbamate (1-19) Hydroxylamine hydrochloride (271 mg, 3.9 mmol) was added to a stirred solution of <strong>[199296-40-7]tert-butyl N-(5-formyl-2-pyridyl)carbamate</strong> (0.86 g, 3.87 mmol) and NaOAc (320 mg,3.9 mmol) in a mixture of EtOH (10 mL) and water (25 mL). The mixture was stirred at rt for 16 h. Then the mixture was extracted with EtOAc and the organic layer was separated, dried (Na2SO4), filtered and the solvents evaporated in vacuo to yield intermediate compound 1-19 as a yellow solid (1.03 g, 88% purity, 99%), which was used in the following step without further purification.
With hydroxylamine hydrochloride; sodium acetate; In tetrahydrofuran; methanol; water; at 20℃; To a mixture of <strong>[199296-40-7]tert-butyl (5-formylpyridin-2-yl)carbamate</strong> (1.99 g), THF (20 ml), and methanol (20 ml), a solution of hydroxylamine hydrochloride (747 mg) and sodium acetate (955 mg) in water (4 ml) was added dropwise, followed by stirring at room temperature for 1 hour. To the reaction mixture, a saturated aqueous solution of sodium bicarbonate was added, followed by extraction with chloroform. The organic layer was dried over anhydrous magnesium sulfate, and then the desiccant was removed. The solvent was evaporated under reduced pressure. To the obtained residue, acetic acid (50 ml) and sodium cyanoborohydride (4.90 g) were added, followed by stirring at room temperature for 27 hours. The reaction mixture was diluted with chloroform, alkalified by adding an 1 M aqueous solution of sodium hydroxide, and then extracted with chloroform-methanol (4:1). The organic layer was dried over anhydrous magnesium sulfate, and then the desiccant was removed. The solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (chloroform-methanol) to obtain a solid (0.79 g). Thereto, THF (10 ml) and chlorocarbonyl isocyanate (0.293 ml) were added, followed by stirring at room temperature for 1.5 hours. The precipitated solid was collected by filtration, and dried by heating under reduced pressure, to obtain 805 mg of tert-butyl {5-[(3,5-dioxo-1,2,4-oxadiazolidin-2-yl)methyl]pyridine-2-yl}carbamate hydrochloride.
  • 15
  • [ 199296-40-7 ]
  • [ 1375150-71-2 ]
  • 16
  • [ 199296-40-7 ]
  • [ 1375150-73-4 ]
  • 17
  • [ 1254831-47-4 ]
  • [ 199296-40-7 ]
  • 3-(6-tert-butoxycarbonylamino-pyridin-3-yl)-2-(1-cyclohexyl-1H-imidazol-4-yl)-acrylic acid ethyl ester [ No CAS ]
YieldReaction ConditionsOperation in experiment
A solution of LiHMDS in THF (246 mL, 261 .0 mmol) was cooled to -70 C. 22.7 g(96.0 mmol) of the compound according to Example 1 dissolved in THF (80 mL) was added drop wise to this solution and stirred for additional 20 minutes at -20 C. The mixture was re-cooled to -70 C and a solution of 20.5 g (92.3 mmoL) of the compound according to Example 2 in THF (300 mL) was added dropwise. Stirring was continued at -70 C until complete conversion was achieved. The mixture was warmed to -20 C and 12.7 mL (91.5 mmol) triethylamine and 21 .1 mL (271 .0 mmol) methansulfonic acid chloride were added. The mixture was allowed to warm to ambient temperature und stirring was continued until conversion was complete. MTBE (400 mL) und water (400 mL) were added and phases were separated. The organic layer was washed with brine (400 mL). The solvent was evaporated to yield the product (42 g) as a mixture of E/Z- isomeres. The crude product was used as is in the next step.HPLC: tR = 1 .15 and 1 .20 min (YMC J'sphere ODS H 80 20 x 2.1 mm, 4 pm, A: H20 + 0.05 % TFA, B: MeCN, 4% - 95 % in 2.45 min, 1 mL/min, 30 C.
  • 18
  • [ 1254831-47-4 ]
  • [ 199296-40-7 ]
  • [ 1375150-70-1 ]
  • [ 1375150-69-8 ]
YieldReaction ConditionsOperation in experiment
A solution of LiHMDS in THF (246 mL, 261.0 mmol) was cooled to -70 C. 22.7 g (96.0 mmol) of the compound according to Example 1 dissolved in THF (80 mL) was added drop wise to this solution and stirred for additional 20 minutes at -20 C. The mixture was re-cooled to -70 C. and a solution of 20.5 g (92.3 mmoL) of the compound according to Example 2 in THF (300 mL) was added dropwise. Stirring was continued at -70 C. until complete conversion was achieved. The mixture was warmed to -20 C. and 12.7 mL (91.5 mmol) triethylamine and 21.1 mL (271.0 mmol) methansulfonic acid chloride were added. The mixture was allowed to warm to ambient temperature and stirring was continued until conversion was complete. MTBE (400 mL) and water (400 mL) were added and phases were separated. The organic layer was washed with brine (400 mL). The solvent was evaporated to yield the product (42 g) as a mixture of E/Z-isomeres. The crude product was used as is in the next step. HPLC: tR=1.15 and 1.20 min (YMC J'sphere ODS H 80 20*2.1 mm, 4 mum, A: H2O+0.05% TFA, B: MeCN, 4%-95% in 2.45 min, 1 mL/min, 30 C.
  • 19
  • [ 1254831-47-4 ]
  • [ 199296-40-7 ]
  • [ 1375150-71-2 ]
YieldReaction ConditionsOperation in experiment
25.2 g 100 g crude acrylic acid ester isomeric mixture prepared according to Example 3 was dissolved in 1 L HCl (5 N) and heated to reflux until complete conversion was achieved. The mixture was cooled to ambient temperature and the pH was adjusted to 7 with concentrated NaOH. The precipitate was filtered off and crystallized from boiling water to yield 25.2 g of 29 (E)-3-(6-Amino-pyridin-3-yl)-2-(1-cyclohexyl-1H-imidazol-4-yl)-acrylic acid. [0288] 1H-NMR (600.2 MHz, CD4OD):=1.34 (m, 2H), 1.52 (m, 2H), 1.77 (m, 4H), 1.94 (m, 2H), 2.18 (m, 2H), 4.22 (dddd, J=1.52, 1.77, 7.42, 8.44, 1H), 6.51 (d, J=7.86 Hz, 1H), 7.19 (d, J=7.82 Hz, 1H), 7.41 (dd, J=4.22, 8.44 Hz, 1H), 7.82 (dd, J=7.19, 7.86 Hz, 1H), 7.86 (dd, J=7.19, 7.82 Hz, 1H), 8.44 (dd, J=4.22, 7.42 Hz, 1H). [0289] HPLC: tR=3.60 (Z) and 3.95 (E) min (YMC_C18 150×4.6 mm, 3 mum, A: 9H2O+1 ACN/0.1 TEA/pH6.5 AcetAc, B: 1H2O+9 ACN/0.1 TEA/pH6.5 AcetAc, 0.8 mL/min, 20 C.
  • 20
  • [ 1254831-47-4 ]
  • [ 199296-40-7 ]
  • [ 1375150-73-4 ]
  • 21
  • diethyl 2,6-difluorobenzylphosphonate [ No CAS ]
  • [ 199296-40-7 ]
  • [ 1620092-98-9 ]
  • 22
  • [ 199296-40-7 ]
  • [ 1620092-99-0 ]
  • 23
  • [ 199296-40-7 ]
  • [ 1620092-86-5 ]
  • 24
  • [ 1533424-28-0 ]
  • [ 199296-40-7 ]
  • tert-butyl 5-((((3-((3,5-dichlorophenyl)amino)-1H-[1,2,4]triazol-5-yl)amino)methyl)pyridin-2-yl)carbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
47% A solution of N3-(3,5-dichlorophenyl)-lH-l,2,4-triazole-3,5-diamine Intermediate 2 (70 mg, 287 mumomicronl) and tert-butyl (5-formylpyridine-2-yl)carbamate (159 mg, 717 mumomicronl) in MeOH (3 ml) was stirred at 45 C for overnight to give a suspension, cooled to -20 C and was filtered to collect the solid. The solid was re-suspended in MeOH (5 ml), NaBH4 (163 mg, 4.3 mmol) was added in a few portions and the reaction was stirred for 1 hour. The solvent was removed, and the reaction mixture was redissolved in EtOAc (5 ml) and washed with water (2x 4 ml), dried over MgS04 and concentrated in vacuo. Purification by flash chromatography (silica gel, 24g, 3% to 6% MeOH in DCM) afforded a white solid as desired product (60.8 mg, 47% yield). MS +m/z: 450 (M+H)+
  • 25
  • [ 1533424-28-0 ]
  • [ 199296-40-7 ]
  • N5-((6-aminopyridin-3-yl)methyl)-N3-(3,5-dichlorophenyl)-1H-[1,2,4]triazole-3,5-diamine [ No CAS ]
  • 26
  • [ 199296-40-7 ]
  • tert-butyl N-[5-[C-chloro-N-hydroxy-carbonimidoyl]-2-pyridyl]carbamate [ No CAS ]
  • 27
  • [ 199296-40-7 ]
  • tert-butyl N-[5-[5-[(7S)-7-methyl-4-oxo-5-[4-(trifluoromethyl)phenyl]-6,7-dihydropyrazolo[1,5-a]pyrazin-3-yl]isoxazol-3-yl]-2-pyridyl]carbamate [ No CAS ]
  • 28
  • [ 199296-40-7 ]
  • (7S)-3-[3-(6-amino-3-pyridyl)isoxazol-5-yl]-7-methyl-5-[4-(trifluoromethyl)phenyl]-6,7-dihydropyrazolo[1,5-a]pyrazin-4-one [ No CAS ]
  • 29
  • [ 24424-99-5 ]
  • [ 69879-22-7 ]
  • [ 199296-40-7 ]
YieldReaction ConditionsOperation in experiment
93% With dmap; triethylamine; In dichloromethane; at 20℃; To a stirring solution of (Boc)20 (1.75 g, 8 mmol) in DCM (10 mL)was added the suspension of 6-aminonicotinaldehyde SM 1 (488 mg, 4 mmol), DMAP (25 mg, 0.2 mmol) and Et3N(1.2 g, 12 mmol) in DCM (20 mL) at RT and stirred overnight. The reaction mixture was concentrated and the residue was diluted with H20 and extracted with DCM. Combined organicextracts were dried over anhydrous Na2504 and concentrated under reduced pressure to obtain cmde product, which was purified by silica gel column chromatography eluting with 50% EtOAc in PE to afford compound 1(1.2 g, 93%) as white solid. LC-MS: m/z = 123.0 [M+H-BOC]
  • 30
  • (1S)-1-cyclopropylethan-1-amine [ No CAS ]
  • [ 199296-40-7 ]
  • (S)-tert-butyl 5-((1-cyclopropylethylamino)methyl)pyridin-2-ylcarbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
71% With sodium tetrahydroborate; In methanol; at 20℃; To a stirring solution of compound 1(600mg, 1.86 mmol) and (S)-1-cyclopropylethanamine (238 mg, 2.8 mmol) in CH3OH (10 mL) was added NaBH3CN (586 mg,9.3 mmol) at RT and stirred overnight. After consumption of the starting material (by TLC), the reaction mixture was quenched with H20 and extracted with EtOAc. Combined organic extracts were dried over anhydrous Na2504 and concentrated under reduced pressure to obtain cmde product, which was purified by silica gel column chromatography eluting with 10% CH3OH inDCM to afford compound 2 (387 mg, 71%) as off-white solid. LC-MS: m/z =192.2 [M+H-BOC]
  • 31
  • [ 199296-40-7 ]
  • N-[(6-aminopyridin-3-yl)methyl]-N-[(1S)-1-cyclopropylethyl]-2-[(4S)-2,5-dioxo-2',3'-dihydrospiro[imidazolidine-4,1'-indene]-1-yl]acetamide [ No CAS ]
  • 32
  • [ 199296-40-7 ]
  • tert-butyl 5-((N-((S)-1-cyclopropylethyl)-2-((S)-2,5-dioxo-2',3'-dihydrospiro[imidazolidine-4,1'-indene]-1-yl)acetamido)methyl)pyridin-2-ylcarbamate [ No CAS ]
  • 33
  • [ 68-12-2 ]
  • [ 159451-66-8 ]
  • [ 199296-40-7 ]
YieldReaction ConditionsOperation in experiment
90% To a solution of (5-Bromo-pyridin-2-yl)-carbamic acid tert-butyl ester (1.0 g, 3.7 mmol, 1.0 equiv.) in dry THF (12 mL) at 0 C was added a2 M solution of i-PrMgCl in THF (1.85 mL, 3.7 mmol, 1.0 equiv.) during 5 min. The clear solution wasstirred at that temperature for an additional 5 min, and a 2.5 M solution of n-BuLi in hexanes (3 mL,7.5 mmol, 2.0 equiv.) was added dropwise during 5 min, while maintaining the temperature below20 C. The resulting mixture was stirred at that temperature for 0.5 h, dry DMF (0.27 g, 3.7 mmol,1.0 equiv.) in dry THF (5 mL) was added dropwise during 10 min. The resulting mixture was warmedto 20 C in 0.5 h and quenched with water (6 mL). After stirring the mixture below 20 C for 10 min,the phases were separated and the water phase was extracted one additional time with ethyl acetate.The resulting suspension was allowed to reach room temperature and fitered through a 0.5 1 cmpad of silica gel eluted with 10 mL of ethyl acetate. The ltrate was concentrated and the residue waspuried by ash chromatography on silica gel (eluent: petroleum ether/ethyl acetate = 10:1) to affordproduct 3a as white solid, 0.73 g (yield: 90%). 1H-NMR (600 MHz, DMSO) 10.42 (s, 1H), 9.94 (s, 1H),8.93-8.60 (m, 1H), 8.17 (dd, J = 8.8, 2.3 Hz, 1H), 7.99 (d, J = 8.8 Hz, 1H), 1.48 (s, 9H). 13C-NMR (151 MHz,DMSO) 191.18, 157.08, 152.82, 152.40, 138.23, 127.30, 112.23, 80.97, 28.37.
  • 34
  • (x)C2HF3O2*C15H17F3N4S [ No CAS ]
  • [ 199296-40-7 ]
  • C21H23F3N6S [ No CAS ]
  • 35
  • (x)C2HF3O2*C15H17F3N4S [ No CAS ]
  • [ 199296-40-7 ]
  • C26H31F3N6O2S [ No CAS ]
YieldReaction ConditionsOperation in experiment
50% To a mixture of intermediate 47 (170 mg, 0.5 mmol) and tert-butyl (5-formylpyridin- 2 yl)carbamate (166.5 mg, 0.75 mmol) in DCM (10 mL) was added titanium(IV) isopropoxide (284 mg, 1 mmol). The mixture was stirred at room temperature for lh, and then NaBH(OAc)3 (212 mg,l mmol) was added. The reaction mixture was stirred at room temperature for 4h. The residue was diluted in water (20 mL), extracted with DCM (30 mL x 2), dried over Na2SC"4 and concentrated to yield intermediate 54 (140 mg, 0.25 mmol, 50%> yield) as oil, which was used in the next step without further purification.
 

Historical Records

Technical Information

• Acyl Group Substitution • Barbier Coupling Reaction • Baylis-Hillman Reaction • Bouveault-Blanc Reduction • Bucherer-Bergs Reaction • Buchwald-Hartwig C-N Bond and C-O Bond Formation Reactions • Catalytic Hydrogenation • Chan-Lam Coupling Reaction • Clemmensen Reduction • Complex Metal Hydride Reductions • Corey-Chaykovsky Reaction • Corey-Fuchs Reaction • Ester Cleavage • Fischer Indole Synthesis • Grignard Reaction • Hantzsch Dihydropyridine Synthesis • Henry Nitroaldol Reaction • Horner-Wadsworth-Emmons Reaction • Hydride Reductions • Julia-Kocienski Olefination • Knoevenagel Condensation • Lawesson's Reagent • Leuckart-Wallach Reaction • Mannich Reaction • McMurry Coupling • Meerwein-Ponndorf-Verley Reduction • Mukaiyama Aldol Reaction • Nozaki-Hiyama-Kishi Reaction • Passerini Reaction • Paternò-Büchi Reaction • Petasis Reaction • Pictet-Spengler Tetrahydroisoquinoline Synthesis • Preparation of Aldehydes and Ketones • Preparation of Amines • Prins Reaction • Reactions of Aldehydes and Ketones • Reactions of Amines • Reactions with Organometallic Reagents • Reformatsky Reaction • Schlosser Modification of the Wittig Reaction • Schmidt Reaction • Specialized Acylation Reagents-Carbodiimides and Related Reagents • Specialized Acylation Reagents-Ketenes • Specialized Acylation Reagents-Vilsmeier Reagent • Stetter Reaction • Stobbe Condensation • Tebbe Olefination • Ugi Reaction • Wittig Reaction • Wolff-Kishner Reduction

Categories

Related Functional Groups of
[ 199296-40-7 ]

Aldehydes

Chemical Structure| 304873-65-2

A111117 [304873-65-2]

tert-Butyl (4-formylpyridin-2-yl)carbamate

Similarity: 0.94

Chemical Structure| 116026-94-9

A236787 [116026-94-9]

tert-Butyl (3-formylpyridin-2-yl)carbamate

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Chemical Structure| 956523-98-1

A135662 [956523-98-1]

tert-Butyl (6-formylpyridin-2-yl)carbamate

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Chemical Structure| 144657-66-9

A216004 [144657-66-9]

tert-Butyl 3-formyl-1H-pyrrolo[2,3-b]pyridine-1-carboxylate

Similarity: 0.80

Chemical Structure| 868736-42-9

A114954 [868736-42-9]

tert-Butyl (4-chloro-3-formylpyridin-2-yl)carbamate

Similarity: 0.74

Amides

Chemical Structure| 304873-65-2

A111117 [304873-65-2]

tert-Butyl (4-formylpyridin-2-yl)carbamate

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Chemical Structure| 169280-83-5

A225391 [169280-83-5]

tert-Butyl (5-(hydroxymethyl)pyridin-2-yl)carbamate

Similarity: 0.91

Chemical Structure| 1260897-34-4

A173658 [1260897-34-4]

tert-Butyl (5-(2-hydroxyethyl)pyridin-2-yl)carbamate

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Chemical Structure| 639091-78-4

A175636 [639091-78-4]

tert-Butyl (4-(aminomethyl)pyridin-2-yl)carbamate

Similarity: 0.88

Chemical Structure| 38427-94-0

A163409 [38427-94-0]

tert-Butyl pyridin-2-ylcarbamate

Similarity: 0.88

Amines

Chemical Structure| 304873-65-2

A111117 [304873-65-2]

tert-Butyl (4-formylpyridin-2-yl)carbamate

Similarity: 0.94

Chemical Structure| 169280-83-5

A225391 [169280-83-5]

tert-Butyl (5-(hydroxymethyl)pyridin-2-yl)carbamate

Similarity: 0.91

Chemical Structure| 1260897-34-4

A173658 [1260897-34-4]

tert-Butyl (5-(2-hydroxyethyl)pyridin-2-yl)carbamate

Similarity: 0.89

Chemical Structure| 639091-78-4

A175636 [639091-78-4]

tert-Butyl (4-(aminomethyl)pyridin-2-yl)carbamate

Similarity: 0.88

Chemical Structure| 38427-94-0

A163409 [38427-94-0]

tert-Butyl pyridin-2-ylcarbamate

Similarity: 0.88

Related Parent Nucleus of
[ 199296-40-7 ]

Pyridines

Chemical Structure| 304873-65-2

A111117 [304873-65-2]

tert-Butyl (4-formylpyridin-2-yl)carbamate

Similarity: 0.94

Chemical Structure| 169280-83-5

A225391 [169280-83-5]

tert-Butyl (5-(hydroxymethyl)pyridin-2-yl)carbamate

Similarity: 0.91

Chemical Structure| 1260897-34-4

A173658 [1260897-34-4]

tert-Butyl (5-(2-hydroxyethyl)pyridin-2-yl)carbamate

Similarity: 0.89

Chemical Structure| 639091-78-4

A175636 [639091-78-4]

tert-Butyl (4-(aminomethyl)pyridin-2-yl)carbamate

Similarity: 0.88

Chemical Structure| 38427-94-0

A163409 [38427-94-0]

tert-Butyl pyridin-2-ylcarbamate

Similarity: 0.88