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【结 构 式】

【分子编号】20970

【品名】1,4-cyclohexanediol

【CA登记号】556-48-9

【 分 子 式 】C6H12O2

【 分 子 量 】116.16008

【元素组成】C 62.04% H 10.41% O 27.55%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(I)

The partial protection of cyclohexane-1,4-diol (I) with dihydropyran (DHP) and p-toluenesulfonic acid in dichloromethane gives the monotetrahydropyranyloxy derivative (II), which is oxidized with oxalyl chloride in DMSO - dichloromethane to 4-(tetrahydropyranyloxy)cyclohexanone (III). The condensation of (III) with propyldiphenylphosphonium bromide by means of n-butyllithium in THF affords the 4-propenyl derivative (V), which is deprotected with p-toluenesulfonic acid in methanol giving 4-propenylcyclohexanol (VI). The hydrogenation of (VI) with H2 over Pd/C in methanol, followed by column chromatography over Lobar (trademark of Merck & Co., Inc.) affords trans-4-propylcyclohexanol (VII), which is mesylated with mesyl chloride and triethylamine in dichloromethane to the corresponding mesylate (VIII). The reaction of (VIII) with NaCN in hot DMSO gives cis-4-propylcyclohexanecarbonitrile (IX), which is hydrolyzed with H2SO4 - water at 130 C yielding cis-4-propylcyclohexanecarboxylic acid (X). Esterification of (X) with diazomethane in ether affords the corresponding methyl ester (XI), which is condensed with dimethyl methylphosphonate (XII) by means of n-butyllithium in THF to give the phosphonate (XIII). The Wittig condensation of (XIII) with 1alpha-acetoxy-2alpha-[6-(methoxycarbonyl)hex-2(Z)-enyl]-3beta-formyl-4alpha-(tetrahydropyran-2-yloxy)cyclopentane (XIV) by means of NaH in THF yields the protected 15-oxo-prostaglandin (XV), which is reduced with LiAlH4 and S-2,2'-dihydroxy-1,1'-binaphthyl (SBN) affording the 15alpha-hydroxy compound (XVI). The methyl cis-4-propylcyclohexanecarboxylate (XI) can also be obtained by a cis-selective hydrogenation of methyl 4-propylbenzoate (XXIV) with hydrogen in hexane as organic phase and a buffer solution at pH 7.6 containing a quaternary salt as phase-transfer catalyst, and the dimer chloro(1,5-cyclooctadiene)rhodium [RhCl(COD)]2 as hydrogenation catalyst.

1 Masuda, Y. (Ono Pharmaceutical Co., Ltd.); New method of treatment using prostaglandin analogues. EP 0169725; JP 1986030519 .
2 Prous, J.; Castaner, J.; OP-2507. Drugs Fut 1989, 14, 6, 525.
3 Iguchi, S.; et al.; T. Synthesis of 15-cis-(4-n-propylcyclohexyl)-16,17,18,19, 20-pentanor-9-deoxy-6,9-alpha-nitriloprostaglandin F2 methyl ester (OP-2507), a novel anti-cerebral ischemic agent. Chem Pharm Bull 1988, 36, 3, 1128.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 20970 1,4-cyclohexanediol 556-48-9 C6H12O2 详情 详情
(II) 20971 4-[(tetrahydro-2H-pyran-2-yloxy)methyl]cyclohexanol C12H22O3 详情 详情
(III) 20972 4-[(tetrahydro-2H-pyran-2-yloxy)methyl]cyclohexanone C12H20O3 详情 详情
(IV) 20973 trimethyl(propyl)phosphonium bromide C21H22BrP 详情 详情
(V) 20974 2-([4-[(E)-1-propenyl]cyclohexyl]methoxy)tetrahydro-2H-pyran; [4-[(E)-1-propenyl]cyclohexyl]methyl tetrahydro-2H-pyran-2-yl ether C15H26O2 详情 详情
(VI) 20975 4-[(E)-1-propenyl]cyclohexanol C9H16O 详情 详情
(VII) 20976 4-propylcyclohexanol C9H18O 详情 详情
(VIII) 20977 methyl(dimethylene)[(4-propylcyclohexyl)oxy]-lambda(6)-sulfane C12H24OS 详情 详情
(IX) 20978 4-propylcyclohexanecarbonitrile C10H17N 详情 详情
(X) 20979 4-propylcyclohexanecarboxylic acid 38289-27-9 C10H18O2 详情 详情
(XI) 20980 methyl 4-propylcyclohexanecarboxylate C11H20O2 详情 详情
(XII) 13607 dimethyl methylphosphonate 756-79-6 C3H9O3P 详情 详情
(XIII) 20982 dimethyl 2-oxo-2-(4-propylcyclohexyl)ethylphosphonate C13H25O4P 详情 详情
(XIV) 20983 methyl (Z)-7-[(1R,2S,3R,5S)-5-(acetoxy)-2-formyl-3-[(tetrahydro-2H-pyran-2-yloxy)methyl]cyclopentyl]-5-heptenoate C22H34O7 详情 详情
(XV) 20984 methyl (Z)-7-[(1R,2S,3R,5S)-5-(acetoxy)-2-[(E)-3-oxo-3-(4-propylcyclohexyl)-1-propenyl]-3-[(tetrahydro-2H-pyran-2-yloxy)methyl]cyclopentyl]-5-heptenoate C33H52O7 详情 详情
(XVI) 20985 methyl (Z)-7-[(1R,2S,3R,5S)-5-(acetoxy)-2-[(E,3S)-3-hydroxy-3-(4-propylcyclohexyl)-1-propenyl]-3-[(tetrahydro-2H-pyran-2-yloxy)methyl]cyclopentyl]-5-heptenoate C33H54O7 详情 详情
(XXIV) 63097 methyl 4-propylcyclohexanecarboxylate C11H20O2 详情 详情
Extended Information