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【结 构 式】 
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【分子编号】30997 【品名】tert-butyl(3-[(10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-3H-cyclopenta[a]phenanthren-3-ylidene]propoxy)dimethylsilane; tert-butyl(dimethyl)silyl 3-[(10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-3H-cyclopenta[a]phenanthren-3-ylidene]propyl ether 【CA登记号】 |
【 分 子 式 】C36H66OSi 【 分 子 量 】543.00494 【元素组成】C 79.63% H 12.25% O 2.95% Si 5.17% |
合成路线1
该中间体在本合成路线中的序号：(V)The reaction of 3-bromopropanol (I) with TBDMS-Cl, DIEA and DMAP in dichloromethane gives the silyl ether (II), which is treated with PPh3 in refluxing acetonitrile yielding the phosphonium salt (III). The Wittig reaction of (III) with 3-cholestanone (IV) by means of BuLi in DME affords 3-[3-(tert-butyldimethylsilyloxy)propylidene]cholestane (V), which is reduced with H2 over PtO2 in ethyl acetate giving 3beta-[3-(tert-butyldimethylsilyloxy)propyl]cholestane (VI). The reaction of (VI) with TBAF in THF gives the 3-hydroxypropyl derivative (VII), which is treated with CBr4 and PPh3 in dichloromethane yielding the 3-bromopropyl derivative (VIII). The reaction of (VIII) with PPh3 in refluxing chlorobenzene affords the phosphonium salt (IX), which is submitted to a Wittig condensation with 5,5'-carbonylbis(3-chloro-2-methoxybenzoic acid methyl ester) (X) by means of NaN(SiMe3)2 in THF giving the expected condensation intermediate (XI). The intermediate 5,5'-carbonylbis(3-chloro-2-methoxybenzoic acid methyl ester) (X) has been obtained as follows: The dimerization of 3-chloro-2-hydroxybenzoic acid (XII) with H2CO and H2SO4 in methanol gives 5,5'-methylenebis(3-chloro-2-hydroxybenzoic acid) (XIII), which is fully methylated with SO4Me2 or CO3Me2 and K2CO3 yielding 5,5'-methylenebis(3-chloro-2-methoxybenzoic acid methyl ester) (XIV). Finally, this compound is oxidized with CrO3 in acetic anhydride to afford the desired intermediate (X).
| 【1】 Bader, J.P.; Cushman, M.; Golebiewski, W.M.; Design and synthesis of cosalane, a novel anti-HIV agent. Bioorg Med Chem Lett 1993, 3, 8, 1739. |
| 【2】 Golebiewski, W.M.; McMahon, J.B.; Cushman, M.; et al.; Design, synthesis, and biological evaluation of cosalane, a novel anti-HIV agent which inhibits multiple features of virus reproduction. J Med Chem 1994, 37, 19, 3040. |
| 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) | 12573 | 3-Bromo-1-propanol; 3-Bromopropanol | 627-18-9 | C3H7BrO | 详情 | 详情 |
| (II) | 30994 | 3-bromopropyl tert-butyl(dimethyl)silyl ether; (3-bromopropoxy)(tert-butyl)dimethylsilane | C9H21BrOSi | 详情 | 详情 | |
| (III) | 30995 | (3-[[tert-butyl(dimethyl)silyl]oxy]propyl)(triphenyl)phosphonium bromide | C27H36BrOPSi | 详情 | 详情 | |
| (IV) | 30996 | (10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-3H-cyclopenta[a]phenanthren-3-one | 15600-08-5 | C27H46O | 详情 | 详情 |
| (V) | 30997 | tert-butyl(3-[(10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-3H-cyclopenta[a]phenanthren-3-ylidene]propoxy)dimethylsilane; tert-butyl(dimethyl)silyl 3-[(10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-3H-cyclopenta[a]phenanthren-3-ylidene]propyl ether | C36H66OSi | 详情 | 详情 | |
| (VI) | 30998 | tert-butyl(dimethyl)silyl 3-[(3R,10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl]propyl ether; tert-butyl(3-[(3R,10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl]propoxy)dimethylsilane | C36H68OSi | 详情 | 详情 | |
| (VII) | 30999 | 3-[(3R,10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl]-1-propanol | C30H54O | 详情 | 详情 | |
| (VIII) | 31000 | (3R,10S,13R,17R)-3-(3-bromopropyl)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene | C30H53Br | 详情 | 详情 | |
| (IX) | 31001 | (3-[(3R,10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl]propyl)(trimethyl)phosphonium bromide | C33H62BrP | 详情 | 详情 | |
| (X) | 26176 | methyl 3-chloro-5-[3-chloro-4-methoxy-5-(methoxycarbonyl)benzoyl]-2-methoxybenzoate | C19H16Cl2O7 | 详情 | 详情 | |
| (XI) | 31002 | methyl 3-chloro-5-(1-[3-chloro-4-methoxy-5-(methoxycarbonyl)phenyl]-4-[(3S,10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl]-1-butenyl)-2-methoxybenzoate | C49H68Cl2O6 | 详情 | 详情 | |
| (XII) | 31003 | 3-chloro-2-hydroxybenzoic acid | C7H5ClO3 | 详情 | 详情 | |
| (XIII) | 31004 | 5-(3-carboxy-5-chloro-4-hydroxybenzyl)-3-chloro-2-hydroxybenzoic acid | C15H10Cl2O6 | 详情 | 详情 | |
| (XIV) | 31005 | methyl 3-chloro-5-[3-chloro-4-methoxy-5-(methoxycarbonyl)benzyl]-2-methoxybenzoate | C19H18Cl2O6 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号：(V)The reaction of 3-bromopropanol (I) with TBDMS-Cl, DIEA and DMAP in dichloromethane gives the silyl ether (II), which is treated with PPh3 in refluxing acetonitrile yielding the phosphonium salt (III). The Wittig reaction of (III) with 3-cholestanone (IV) by means of BuLi in DME affords 3-[3-(tert-butyldimethylsilyloxy)propylidene]cholestane (V), which is reduced with H2 over PtO2 in ethyl acetate giving 3beta-[3-(tert-butyldimethylsilyloxy)propyl]cholestane (VI). The reaction of (VI) with TBAF in THF gives the 3-hydroxypropyl derivative (VII), which is treated with CBr4 and PPh3 in dichloromethane yielding the 3-bromopropyl derivative (VIII). The reaction of (VIII) with PPh3 in refluxing chlorobenzene affords the phosphonium salt (IX), which is submitted to a Wittig condensation with 5,5'-carbonylbis(3-chloro-2-methoxybenzoic acid methyl ester) (X) by means of NaN(SiMe3)2 in THF giving the expected condensation intermediate (XI). The intermediate 5,5'-carbonylbis(3-chloro-2-methoxybenzoic acid methyl ester) (X) has been obtained as follows: The dimerization of 3-chloro-2-hydroxybenzoic acid (XII) with H2CO and H2SO4 in methanol gives 5,5'-methylenebis(3-chloro-2-hydroxybenzoic acid) (XIII), which is fully methylated with SO4Me2 or CO3Me2 and K2CO3 yielding 5,5'-methylenebis(3-chloro-2-methoxy-benzoic acid methyl ester) (XIV). Finally, this compound is oxidized with CrO3 in acetic anhydride to afford the desired intermediate (X).
| 【1】 Golebiewski, W.M.; McMahon, J.B.; Cushman, M.; et al.; Design, synthesis, and biological evaluation of cosalane, a novel anti-HIV agent which inhibits multiple features of virus reproduction. J Med Chem 1994, 37, 19, 3040. |
| 【2】 Bader, J.P.; Cushman, M.; Golebiewski, W.M.; Design and synthesis of cosalane, a novel anti-HIV agent. Bioorg Med Chem Lett 1993, 3, 8, 1739. |
| 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) | 12573 | 3-Bromo-1-propanol; 3-Bromopropanol | 627-18-9 | C3H7BrO | 详情 | 详情 |
| (II) | 30994 | 3-bromopropyl tert-butyl(dimethyl)silyl ether; (3-bromopropoxy)(tert-butyl)dimethylsilane | C9H21BrOSi | 详情 | 详情 | |
| (III) | 30995 | (3-[[tert-butyl(dimethyl)silyl]oxy]propyl)(triphenyl)phosphonium bromide | C27H36BrOPSi | 详情 | 详情 | |
| (IV) | 30996 | (10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-3H-cyclopenta[a]phenanthren-3-one | 15600-08-5 | C27H46O | 详情 | 详情 |
| (V) | 30997 | tert-butyl(3-[(10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-3H-cyclopenta[a]phenanthren-3-ylidene]propoxy)dimethylsilane; tert-butyl(dimethyl)silyl 3-[(10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-3H-cyclopenta[a]phenanthren-3-ylidene]propyl ether | C36H66OSi | 详情 | 详情 | |
| (VI) | 30998 | tert-butyl(dimethyl)silyl 3-[(3R,10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl]propyl ether; tert-butyl(3-[(3R,10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl]propoxy)dimethylsilane | C36H68OSi | 详情 | 详情 | |
| (VII) | 30999 | 3-[(3R,10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl]-1-propanol | C30H54O | 详情 | 详情 | |
| (VIII) | 31000 | (3R,10S,13R,17R)-3-(3-bromopropyl)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene | C30H53Br | 详情 | 详情 | |
| (IX) | 31001 | (3-[(3R,10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl]propyl)(trimethyl)phosphonium bromide | C33H62BrP | 详情 | 详情 | |
| (X) | 26176 | methyl 3-chloro-5-[3-chloro-4-methoxy-5-(methoxycarbonyl)benzoyl]-2-methoxybenzoate | C19H16Cl2O7 | 详情 | 详情 | |
| (XI) | 31002 | methyl 3-chloro-5-(1-[3-chloro-4-methoxy-5-(methoxycarbonyl)phenyl]-4-[(3S,10S,13R,17R)-17-[(1R)-1,5-dimethylhexyl]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl]-1-butenyl)-2-methoxybenzoate | C49H68Cl2O6 | 详情 | 详情 | |
| (XII) | 31003 | 3-chloro-2-hydroxybenzoic acid | C7H5ClO3 | 详情 | 详情 | |
| (XIII) | 31004 | 5-(3-carboxy-5-chloro-4-hydroxybenzyl)-3-chloro-2-hydroxybenzoic acid | C15H10Cl2O6 | 详情 | 详情 | |
| (XIV) | 31005 | methyl 3-chloro-5-[3-chloro-4-methoxy-5-(methoxycarbonyl)benzyl]-2-methoxybenzoate | C19H18Cl2O6 | 详情 | 详情 |