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Chemical Structure| 56469-10-4 Chemical Structure| 56469-10-4

Structure of 56469-10-4

Chemical Structure| 56469-10-4

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Product Details of [ 56469-10-4 ]

CAS No. :56469-10-4
Formula : C15H24O2
M.W : 236.35
SMILES Code : OC1=CC(C(C)(C)CCCCCC)=CC(O)=C1
MDL No. :MFCD03001733
InChI Key :GWBGUJWRDDDVBI-UHFFFAOYSA-N
Pubchem ID :91870

Safety of [ 56469-10-4 ]

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

Computational Chemistry of [ 56469-10-4 ] Show Less

Physicochemical Properties

Num. heavy atoms 17
Num. arom. heavy atoms 6
Fraction Csp3 0.6
Num. rotatable bonds 6
Num. H-bond acceptors 2.0
Num. H-bond donors 2.0
Molar Refractivity 73.79
TPSA ?

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

40.46 Ų

Lipophilicity

Log Po/w (iLOGP)?

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

2.88
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

5.59
Log Po/w (WLOGP)?

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

4.35
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.

3.46
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

3.94
Consensus Log Po/w?

Consensus Log Po/w: Average of all five predictions

4.04

Water Solubility

Log S (ESOL):?

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

-4.69
Solubility 0.0048 mg/ml ; 0.0000203 mol/l
Class?

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

Moderately soluble
Log S (Ali)?

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

-6.2
Solubility 0.000149 mg/ml ; 0.000000629 mol/l
Class?

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

Poorly 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

-4.49
Solubility 0.00768 mg/ml ; 0.0000325 mol/l
Class?

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

Moderately 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

Yes
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

Yes
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.

-3.77 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

1.0
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

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<2.0
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)

1.93

Application In Synthesis of [ 56469-10-4 ]

* 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 [ 56469-10-4 ]

[ 56469-10-4 ] Synthesis Path-Downstream   1~35

  • 1
  • [ 60526-81-0 ]
  • [ 56469-10-4 ]
YieldReaction ConditionsOperation in experiment
With hydrogenchloride; sodium hydroxide; boron tribromide; In dichloromethane; water; EXAMPLE 4 5-(1,1-dimethylheptyl)resorcinol To a cold stirred solution of 62.5 g. of boron tribromide in 200 ml. of dichloromethane was added dropwise over one hour a solution of 26.4 g. of 1-(1,1-dimethylheptyl)-3,5-dimethoxybenzene from Example 3 dissolved in 100 ml. of dichloromethane. The reaction mixture was stirred at 0 C. for 2 hours, and then allowed to warm to room temperature, and then stirred for additional 12 hours. After cooling the reaction mixture again to 0 C., it was added slowly to 200 ml. of water. The organic layer was then separated, and the product was extracted therefrom into 2N sodium hydroxide solution. The aqueous alkaline solution was then acidified by the addition of 1N hydrochloric acid. The aqueous acid solution was then extracted several times with diethyl ether. The ethereal extracts were combined, washed with aqueous sodium chloride solution, and dried. The solvent was removed by evaporation under reduced pressure to afford 20.2 g. of 5-(1,1-dimethylheptyl)resorcinol. M.P. 97-99 C. nmr (CDCl3): delta 6.35 (d, 2H, aromatic) delta 6.15 (t, 1H, aromatic) delta 5.20 (broad s, 2H, OH) delta 1.20 (s, 6H, C(CH3)2) delta 1.8-0.5 (m, 13H, alkyl)
With pyridine hydrochloride; In water; EXAMPLE 5 5-(1,1-dimethylheptyl)resorcinol A mixture of 21.2 g. of 1-(1,1-dimethylheptyl)-3,5-dimethoxybenzene and 55.0 g. of pyridine hydrochloride was heated at reflux and stirred for 51/2 hours. The reaction mixture then was cooled to room temperature and added to 150 ml. of water. The aqueous solution was extracted several times with diethyl ether, and the ethereal extracts were washed with water and dried. Removal of the solvent by evaporation under reduced pressure provided the product as a solid residue. The solid was recrystallized from 40 ml. of n-hexane to afford 13.0 g. of 5-(1,1-dimethylheptyl)resorcinol. M.P. 97-99 C. nmr (CDCl3): delta 6.35 (d, 2H, aromatic) delta 6.15 (t, 1H, aromatic) delta 5.2 (broad s, 2H, OH) delta 1.20 (s, 6H, C(CH3)2)
With hydrogen bromide; In water; acetic acid; EXAMPLE 6 5-(1,1-dimethylheptyl)resorcinol A solution of 425 g. of 1-(1,1-dimethylheptyl)-3,5-dimethoxybenzene in 1700 ml. of glacial acetic acid containing 850 ml. of 48 percent aqueous hydrobromic acid was stirred and heated at reflux for 12 hours. The reaction mixture was cooled to room temperature and added to 6000 ml. of water. The aqueous reaction mixture was stirred while the product crystallized out of solution. Filtration of the mixture afforded 371 g. of 5-(1,1-dimethylheptyl)resorcinol. M.P. 93-95 C.
With boron tribromide; In dichloromethane; at -15 - 25℃; A solution of 11 in 3 volumes of methylene chloride was added dropwise to a stirred solution of 3 molar equivalents of boron tribromide in 6.7 volumes of methylene chloride, at (-15)-(-10) C. over a period of 4-8 hours. The mixture was gradually warmed overnight to room temperature (20-25 C.) and 1 volume of ice water was added. The organic phase was separated and retained and the aqueous phase was extracted twice with 0.3 volumes of methylene chloride. The organic phases were combined, dried over 0.05 parts anhydrous magnesium sulphate, and the solvent was removed in vacuum below 85 C. The residue was refluxed with five volumes of hexane, cooled to 20-25 C. and the resulting crystals of dimethylheptyl resorcinol (12) filtered off, rinsed with hexane and dried under vacuum at 50-55 C.
With boron tribromide; In toluene; at -15 - 25℃; for 6 - 10h; A solution of 11 in 3 volumes of toluene was added dropwise to a stirred solution of 3 molar equivalents of boron tribromide in 4 volumes of toluene, at (-15)-(-10) C. over a period of 4-8 hours. The mixture was gradually warmed to room temperature (20-25 C.) over a period of about 2 hours, and then 1 volume of ice water was added. The organic phase was separated and retained and the aqueous phase was extracted twice with 0.3 volumes of toluene. The organic phases were combined, dried over 0.05 parts anhydrous magnesium sulphate, and the solvent was removed in vacuum below 85 C. The residue was refluxed with five volumes of heptane, cooled to 20-25 C. and the resulting crystals of dimethylheptyl resorcinol (12) filtered off, rinsed with hexane and dried under vacuum at 50-55 C.
2 g With boron tribromide; In dichloromethane; at -78 - 25℃; for 5h; A solution of Compound (6) (2.0 g, 7.6 mmol) in CH2CI2 (20 mL) was cooled to -78 C. BBr3 (1 .8 mL, 4.7 g, 2.5 equiv) was added dropwise, after which the reaction mixture was warmed to 20-25 C and stirred for 5 hours, by which point the reaction was judged complete by HPLC analysis. The reaction mixture was poured into ice water and extracted twice with EtOAc. The combined extracts were washed with water and dried over MgS04. The dried extracts were concentrated to a brown oil which was crystallized from a mixture of CH2CI2 (4 mL) and heptane (200 mL) to provide 2.0 g of DMHR.

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  • [ 123331-82-8 ]
  • 16
  • [ 61597-37-3 ]
  • [ 56469-10-4 ]
  • [ 65769-09-7 ]
YieldReaction ConditionsOperation in experiment
87% With sodium hydroxide;tin(IV) chloride; In dichloromethane; water; EXAMPLE 12 2,7-Dihydroxy-5-isopropylidene-9-(1,1-dimethylheptyl)-2,6-methano-3,4,5,6-tetrahydro-2H-1-benzoxocin A solution of 11.8 g. of 5-(1,1-dimethylheptyl)-resorcinol, 12.0 g. of 1-methoxy-4-(1-hydroxy-1-methyl-ethyl)-1,4-cyclohexadiene and 0.9 ml. of water in 100 ml. of dichloromethane stabilized with cyclohexane (ie. commercial grade dichloromethane) was stirred and cooled to -20 C. in a dry ice-acetone bath. To the cold stirred solution was added 13 ml. of stannic chloride dropwise at a rapid rate over three minutes, during which time the temperature of the reaction mixture increased to -11 C. Immmediately following complete addition of the stannic chloride to the reaction mixture, the mixture was poured into 200 g. of ice, and 50 ml. of water was added to the ice mixture. The organic layer was separated, washed twice with 200 ml. portions of 1N sodium hydroxide and then with 250 ml. of water. The organic layer next was dried, and the solvent was removed by evaporation under reduced pressure to provide 20.5 g. of the product as a solid. The solid thus formed was recrystallized from n-hexane to afford 16.2 g. (87 percent yield) of 2,7-dihydroxy-5-isopropylidene-9-(1,1-dimethylheptyl)-2,6-methano-3,4,5,6-tetrahydro-2H-1-benzoxocin. M.P. 148-152 C.
In dichloromethane; trifluoroborane diethyl ether; EXAMPLE 1 2,7-dihydroxy-5-isopropylidene-9-(1,1-dimethylheptyl)-2,6-methano-3,4,5,6-tetrahydro-2H-1-benzoxocin. A solution of 1.0 g. of 1-methoxy-4-(1-hydroxy-1-methylethyl)-1,4-cyclohexadiene and 1.18 g. of 5-(1,1-dimethylheptyl)resorcinol in 40 ml. of dichloromethane was cooled to 5 C. in an ice-water bath and stirred while 1.5 ml. of boron trifluoride diethyl etherate was added to the mixture in one portion. The reaction mixture then was stirred at 5 C. for 5 hours. The reaction mixture then was washed with aqueous sodium bicarbonate solution and dried. The solvent was removed by evaporation under reduced pressure to provide the product as an oil. The oil so formed was triturated with n-hexane and then allowed to stand at room temperature for 12 hours, during which time the oil solidified. The solid product was collected by filtration and was recrystallized from 10 ml. of methyl cyclohexane to afford 580 mg. of 2,7-dihydroxy-5-isopropylidene-9-(1,1-dimethylheptyl)-2,6-methano-3,4,5,6-tetrahydro-2H-1-benzoxocin. M.P. 158-159 C.
  • 17
  • [ 56469-10-4 ]
  • [ 82078-77-1 ]
  • [ 182509-23-5 ]
  • 18
  • [ 56469-10-4 ]
  • (-)-6,6-dimethyl-2,4-diacetoxy-2-norpinene [ No CAS ]
  • [ 182509-23-5 ]
  • 19
  • [ 28239-05-6 ]
  • [ 56469-10-4 ]
  • [ 182509-23-5 ]
YieldReaction ConditionsOperation in experiment
They were synthesised according to , the starting resorcinol derivatives being: 5-(1,2-dimethyl heptyl)-resorcinol 5-(1,2-dimethyloctyl) resorcinol 5-(1,2-dimethylhexyl) resorcinol 5-(1,1-dimethyl heptyl) resorcinol 5-(1-ethyl-2-methylpropyl) resorcinol 5-methylnonyl resorcinol 5-(1-methylnonyl) resorcinol 5-(1-methyloctyl) resorcinol 5-(1,2,4-trimethylhexyl) resorcinol ...
In the procedures of example 1 and 2, using the following 5-alkyl resorcinols in place of 5-(1,2-dimethylheptyl)-resorcinol, 5-(1,2-dimethyloctyl) resorcinol 5-(1,2-dimethylhexyl) resorcinol 5-(1,1-dimethylheptyl) resorcinol 5-(1-ethyl-2-methylpropyl) resorcinol 5-(methylnonyl) resorcinol ...
  • 21
  • [ 56469-10-4 ]
  • [ 74410-00-7 ]
  • (+)-5'-dimethylheptyl-cannabidiol [ No CAS ]
  • 22
  • [ 24903-95-5 ]
  • [ 56469-10-4 ]
  • [ 66933-01-5 ]
  • 23
  • [ 56469-10-4 ]
  • [ 107-30-2 ]
  • [ 1004305-44-5 ]
YieldReaction ConditionsOperation in experiment
75% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 20℃; for 4.25h; To a stirred solution of resorcinol (49) (1.00 g, 4.23 mmol) and N-ethyldiisopropyl amine (3.04 mL, 16.92 mmol) in CH2Cl2 at O0C was added chloromethyl methyl ether (0.82 mL, 10.15 mmol) over 15 min period. The solution was warmed to room temperature, stirred for 4 hours and volatiles were removed in vacuo. The residue was purified by flash column chromatography on silica gel (diethyl ether-hexane) to give the title compound in 75% yield.
75% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 0 - 20℃; for 4.25h; To a stirred solution of resorcinol (49) (1.00 g, 4.23 mmol) and N- <n="107"/>ethyldiisopropylamine (3.04 mL, 16.92 mmol) in CH2CI2 at 0C was added chloromethyl methyl ether (0.82 mL, 10.15 mmol) over 15 min period. The solution was warmed to RT, stirred for 4 hours and volatiles were removed in vacuo. The residue was purified by flash column chromatography on silica gel (diethyl ether-hexane) to give the title compound in 75% yield.
  • 24
  • [ 56469-10-4 ]
  • [ 194714-93-7 ]
  • 25
  • [ 39192-51-3 ]
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  • 26
  • [ 61133-09-3 ]
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  • 27
  • [(Z)-2-(3,5-Dimethoxy-phenyl)-oct-1-enyl]-[1-phenyl-meth-(E)-ylidene]-amine [ No CAS ]
  • [ 56469-10-4 ]
  • 28
  • [ 56469-10-4 ]
  • [ 112924-45-5 ]
  • 29
  • [ 56469-10-4 ]
  • [ 112924-45-5 ]
  • 30
  • 1-(1,1-dimethyl-hept-2-enyl)-3,5-dimethoxy-benzene [ No CAS ]
  • [ 56469-10-4 ]
  • 31
  • [ 775352-38-0 ]
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  • 32
  • [ 61133-10-6 ]
  • [ 56469-10-4 ]
  • 33
  • [ 926645-58-1 ]
  • [ 56469-10-4 ]
  • [ 113449-78-8 ]
YieldReaction ConditionsOperation in experiment
With boron trifluoride diethyl etherate; In dichloromethane; at -15 - -10℃; for 7h; To a mixture of 1.1 molar equivalents of 5 and 1.0 molar equivalent of 12 in 24 volumes of methylene chloride were added four molar equivalents of boron trifluoride etherate, at (-15)-(-10) C. over one hour. The reaction mixture was maintained at the above temperature for 2.5 hours, then treated with another four molar equivalents of boron trifluoride etherate over one hour and stirred at the same temperature for another 2.5 hours. The reaction mixture was poured onto 0.5 parts of crushed ice containing 29 molar equivalents of sodium bicarbonate and left overnight at 20-25 C. The organic layer was separated and washed 3 times with 1.4 volumes (each) of 5% aqueous solution of sodium bicarbonate and dried over 0.05 parts of anhydrous sodium sulphate. The solvent was removed in vacuum at 50 Torr and 45 C. The residue was passed through 10 parts of silica gel 60-230 mesh using toluene as eluent. The fractions containing dexanabinol pivalate were collected and the solvent was removed in vacuum to afford dexanabinol pivalate (13) as an oil.
A 0.5 liter reactor previously filled with nitrogen, was charged with 25.25 g of 5 (0.1 mole) and 36.3 g of 12 (0.14 mole) in 247 ml of DCM. The reaction mixture was cooled to (-15)-(-20) C. under stirring and while keeping the temperature below -14 C. 42.6 g of boron trifluoride etherate were added. The resulting brownish solution was maintained at -15 C. for at least 1 hr. When the reaction was completed, a previously prepared solution of 15.15 g of sodium bicarbonate in 288 ml of water was added while letting the temperature rise up to 20 C. Then the two phases were separated. The organic phase was washed again with sodium bicarbonate solution and again phases were separated. To the organic phase 76 ml of water were added and then 40 g of sodium hydroxide 30.5% solution. After 10 minutes of stirring the two phases were separated. The organic phase was washed with 100 ml of water and again phases were separated. Then the organic phase was acidified with hydrochloric acid at 15-20 C. until pH 4-4.5 and the phases were separated. The organic phase was washed with 100 ml of water and then phases were separated. The solvent was removed under reduce pressure at 40-50 C. The oily residue was diluted with 150 ml of THF. The solution obtained was cooled to 20 C. The product (13) was not further isolated and it was used in the next step as a solution in THF.
With boron trifluoride diethyl etherate; In dichloromethane; at -11℃; for 0.5h;Inert atmosphere; (+)-4-hydroxymyrtenol pivalate (RTE.1.2C) (Lot2213- 170-3, 84.1%; 0.28 g, 0.86 mmoles, 1.0 equiv) was charged into a 40 mL scintillation vial with septum and nitrogen inlet. The vial was charged with dimethylbicyclo[3.1.1]hept-2-ene-2-methanol (DMHR) (260 mg, 1.2 equiv). Next the vial was charged with CH2CI2 (5 mL) and the suspension was cooled with an ice/salt bath. The reaction was then charged with BF3 etherate (0.42 mL, 3.5 equivs) added dropwise over 2 minutes by syringe. The resulting brown solution was then stirred cold for 30 mins (reaching a bath temperature of -11C). An aliquot was withdrawn and quenched in a small volume of water. After extracting with CH2CI2 progress was checked by TLC in 3 systems (all ethyl acetate/ heptane). There appeared to be no RTE.1.2C remaining. There was unreacted DMHR well separated from the new spot. The reaction was then quenched in the cold by gradual addition of water (5 mL, 5 volumes). The reaction was allowed to warm with vigorous stirring. The layers were separated by pipet and the bottom layer (CH2CI2, product) was set aside. The aqueous layer was then extracted lx with CH2CI2 (5 mL, 5 volumes.) The combined organic layers were then washed with saturated sodium bicarbonate (5 mL, 5 volumes.) Next the organic layers were washed with 25% sodium hydroxide (0.5 mL). After separating these layers the organic layers were adjusted to pH of ~1 with dropwise addition of 1 N HC1. Then the layers were washed 2x with water (5 mL). The organic layers then concentrated (Rotovap, 30 -40C). The crude product was taken up in CH2CI2 and a few drops of methanol and transferred to a silica flash column. Elution with starting at 0-10% ethyl acetate/heptane gave elution of product well separated from DMHR and partially from two spots just above and below the major. Fractions containing the product spot were concentrated (Rotovap, 50C). The material was transferred to a tared vial and residual solvents were chased with portions of LC- 2213-172-1 Major peak 33.983 mins (75.25%) plus minor peak 35.125 mins (15.98%). LC-MS- 2213-172-2 Major peak 9.420 mins (88.69% at 210 nm, ES" 413 loss of t-butyl). NMR (CDC )- 2213-172-1 1H supports desired structure with good apparent purity. Potency determination by wt/wt (1,4-dimethoxybenzene) as 2213-172-4 A&B gave average of 77.7%. Yield 0.26 g or calculated 50% from potency data (Lot2213-172-3).
  • 34
  • [ 106-24-1 ]
  • [ 56469-10-4 ]
  • cannabigerol dimethylheptyl [ No CAS ]
YieldReaction ConditionsOperation in experiment
With boron trifluoride diethyl etherate; In dichloromethane; at 20℃; for 48h; Synthesis of resorcinol derivatives Resorcinol derivatives were synthesized essentially as previously described [Baek S. et al. (1995) Bull. Korean Chein. Soc. 16,281-284]. These compounds were prepared by the condensation of a resorcinol derivative, substituted with an Rl side chain at C5, with an allylic alcohol (R2-OH, preferably a terpenoid allylic alcohol) in the presence of BF3 etherate to yield the desired product. The general formula of the resorcinol derivatives produced can be represented by formula (I) below: Wherein Rl stands for either one of: a. a straight or branched alkyl of 7 to 12 carbon atoms; b. a group -O-Ra, where Ra is a straight or branched alkyl of 5 to 9 carbon atoms, or a straight or branched alkyl substituted at the terminal carbon atom by a phenyl group; or c. a group -(CH2)n-O-alkyl, where n is an integer from 1 to 7 and the alkyl group contains 1 to 5 carbon atoms. R2 stands for a non-cyclic terpenoid carbon chain such as geranyl, farnesyl, and related non-cyclic terpenes and their isomers as well as other non cyclic paraffinic or olefinic carbon chains. Essentially, the compounds were synthesized as follows: 1. To a stirred suspension of silica gel (20 g) in dry CH2Ch (100 ml) under N2, BF3 etherate (2 ml) was added. 2. The mixture was stirred for 15 minutes at room temperature, and a solution of 1',1'-dimethyl heptyl resorcinol (2.36 g) and geraniol (2.3 g), in 20 ml of dry CH2Cl2, was added in one portion. 3. The reaction mixture was stirred at room temperature for 48 hours. 4. A saturated solution of NaHC03 was added (200 ml) to the mixture. 5. The mixture was then separated and the aqueous layer was extracted three times with dichloromethane. 6. The combined organic extracts were dried and evaporated. After the evaporation the final weight was 5.37 grams. 7. The compound was purified by column chromatography on silica gel to give 4.3 g pure cannabigerol dimethylheptyl (denominated Compound 1, wherein Rl = 1,1-dimethylheptyl; R2 = geranyl). ¹H NMR: (CDCl3), 8 0.85 (3H, t,CH3), 1.20 (6H, s, two CH3), 1.59,1.67, 1.80 (9H, s, olefinic CH3), 3.42 (2H, d, J = 8.0 Hz, C-8H), 5.04 - 4.94 (2H, m, olefinic H), 6.37 (2H, s, arom H).
  • 35
  • [ 61597-36-2 ]
  • [ 573981-49-4 ]
  • [ 56469-10-4 ]
  • [ 61597-35-1 ]
YieldReaction ConditionsOperation in experiment
With toluene-4-sulfonic acid; In chloroform-d1; at 20℃; for 4h; To a 3 -necked flask containing n-butyl lithium (196 ml, 2M) and 44 g potassium tert- butoxide at -780C under nitrogen atmosphere, 50 ml of (+)-alpha-pinene (1) was added dropwise. The reaction was allowed to warm up to room temperature and was stirred continuously for 48 hours. The reaction was then cooled to -78 C. Trimethyl borate (113 ml) in 80 ml of ether was added and the reaction was allowed to warm up to room temperature and was stirred for one additional hour. The organic layer was separated, and the aqueous layer was extracted with n-hexane (3 x 80 ml). The combined organic phases were washed with brine, dried over anhydrous sodium sulfate, filtered and evaporated to dryness to afford compound (2 (+)-beta-pinene. This procedure is according to Brown et al. [Brown H.C. et al., J. Org. Chem. 54: 1764-6, 1989]. To. (+)-beta-pinene (2) (30.8 g) were added RuCl3 (0.470 g), and benzyltributyl ammonium chloride (2.12 g) dissolved in 250 ml of ethyl acetate. To this mixture, sodium periodate (145.5 g) in 1.3 L of water was added dropwise, stirred at room temperature for 3 hours and left overnight. 250 ml of ethyl acetate were added to the reaction mixture. The organic phase was separated, washed with EPO <DP n="36"/>500 ml of brine, 500 ml of 10% sodium sulfite, dried over anhydrous sodium sulfate, filtered, evaporated under reduced pressure to afford compound (3), (-)-Nopinone. This procedure is according to Yuasa et al. [Yuasa Y. et al., J. Essent. Oil. Res. 10: 39-42, 1998]. (-)-Nopinone (3) (14.86 g) and p-toluenesulfonic acid (1.48 g) were dissolved in isoprenyl acetate (148 ml). The reaction mixture was heated at reflux for 5 hours using a Dean- Stark apparatus to remove the acetone. The solvents were removed under reduced pressure, and the residue was taken in 400 ml of ether, washed with water, dried over anhydrous sodium sulfate, filtered and evaporated to afford compound (4), (+)-Nopinone enol acetate. This procedure is based on a method developed for the opposite enantiomer by Archer et al. [Archer R.A. et al., J. Org. Chem. 42: 2277-84, 1977]. To a solution of 16.17 g of (+)-Nopinone enol acetate (4) in 202 ml of dry toluene were added 62.2 g of Pb(OAc)4 (previously dried in vacuo over P2O5/KOH overnight). The reaction mixture was heated at 80C for 3.5 hours, cooled, filtered, washed with saturated sodium bicarbonate. The organic layer was separated, dried over anhydrous sodium sulfate and evaporated under reduced pressure to yield (+)-6,6-Dimethyl-2,4-diacetoxy-2-norpinene (5) and (-)- 6,6-dimethyl-2,2-diacetoxy-3-norpinene (6). A mixture of 5 and 6 (1.18 g, 5 mmol), resorcinol wherein R is 1,1-dimethylheptyl (7) (1.18 g, 5 mmol) and p-toluenesulfonic acid (0.95 g, 5 mmol) in chloroform (50 ml) was allowed to react at room temperature for 4 hours. Ether (30 ml) was then added, and the organic phase was washed with saturated sodium bicarbonate, water, then dried over anhydrous sodium sulfate, filtered and evaporated. The residue was allowed to crystallize in acetonitrile to provide 0.5 g of crystals. The mother liquors were chromatographed over silica gel to afford further 0.7 g of pure compound 18A.
 

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