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【结 构 式】 
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【分子编号】44519 【品名】phenyl (3S,6R,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8-tetramethyl-5-oxo-10-undecenoate 【CA登记号】 |
【 分 子 式 】C33H58O5Si2 【 分 子 量 】590.99152 【元素组成】C 67.07% H 9.89% O 13.54% Si 9.5% |
合成路线1
该中间体在本合成路线中的序号：(XXI)The asymmetric catalytic aldol reaction of aldehyde (XVI) with acetophenone by means of a chiral lanthane catalyst yields a diastereomeric mixture of hydroxyketones from which the desired isomer (XVII) is isolated. The Baeyer-Villiger oxidation of (XVII) with trimethylsilyl peroxide and SnCl4 affords the phenyl ester (XVIII), which is deprotected with BCl3 in dichloromethane, giving the trihydroxyester (XIX). The selective protection of (XIX) with Tbdms-OTf and DIEA in dichloromethane yields the bis silylated compound (XX), which is finally oxidized with DMP in dichloromethane to furnish the target undecenoic ester intermediate (XXI).
| 【1】 Sawada, D.; et al.; Enantioselective total synthesis of epothilones A and B using multifunctional asymmetric catalysis. J Am Chem Soc 2000, 122, 43, 10521. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XVI) | 44514 | 2-methyl-2-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]propanal | C16H28O3 | 详情 | 详情 | |
| (XVII) | 44515 | (3S)-3-hydroxy-4-methyl-1-phenyl-4-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]-1-pentanone | C24H36O4 | 详情 | 详情 | |
| (XVIII) | 44516 | phenyl (3S)-3-hydroxy-4-methyl-4-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]pentanoate | C24H36O5 | 详情 | 详情 | |
| (XIX) | 44517 | phenyl (3S,5R,6R,7S,8S)-3,5,7-trihydroxy-4,4,6,8-tetramethyl-10-undecenoate | C21H32O5 | 详情 | 详情 | |
| (XX) | 44518 | phenyl (3S,5R,6S,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-5-hydroxy-4,4,6,8-tetramethyl-10-undecenoate | C33H60O5Si2 | 详情 | 详情 | |
| (XXI) | 44519 | phenyl (3S,6R,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8-tetramethyl-5-oxo-10-undecenoate | C33H58O5Si2 | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号：(XXI)Assembly of the target compound: The condensation of intermediates (XXI) and (XXXIV) by means of 9-BBN, a PdCl2 catalyst and K3PO4 in hot DMF/water gives the adduct (XXXV), which is hydrolyzed with NaOH in methanol/water to yield the hydroxyacid (XXXVI). The macrolactonization of (XXXVI) by the Yamaguchi procedure using 2,4,6-trichlorobenzoyl chloride, TEA and DMAP in THF affords the macrolactone (XXXVII), which is desilylated with HF and pyridine in THF, furnishing the dihydroxylactone (XXXVIII). Finally, this compound is epoxidated by means of dimethyldioxirane (XXXIX) in dichloromethane.
| 【1】 Sawada, D.; et al.; Enantioselective total synthesis of epothilones A and B using multifunctional asymmetric catalysis. J Am Chem Soc 2000, 122, 43, 10521. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XXI) | 44519 | phenyl (3S,6R,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8-tetramethyl-5-oxo-10-undecenoate | C33H58O5Si2 | 详情 | 详情 | |
| (XXXIV) | 44493 | (1S,3Z)-4-iodo-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-3-butenyl acetate | C13H16INO2S | 详情 | 详情 | |
| (XXXV) | 44528 | phenyl (3S,6R,7S,8S,12Z,15S,16E)-15-(acetoxy)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxo-12,16-heptadecadienoate | C46H75NO7SSi2 | 详情 | 详情 | |
| (XXXVI) | 44473 | (3S,6R,7S,8S,12Z,15S,16E)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-15-hydroxy-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxo-12,16-heptadecadienoic acid | C38H69NO6SSi2 | 详情 | 详情 | |
| (XXXVII) | 44446 | (4S,7R,8S,9S,16S)-4,8-bis[[tert-butyl(dimethyl)silyl]oxy]-5,5,7,9-tetramethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxa-13-cyclohexadecene-2,6-dione | C38H67NO5SSi2 | 详情 | 详情 | |
| (XXXVIII) | 44447 | (4S,7R,8S,9S,16S)-4,8-dihydroxy-5,5,7,9-tetramethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxa-13-cyclohexadecene-2,6-dione | C26H39NO5S | 详情 | 详情 | |
| (XXXIX) | 31501 | 3,3-dimethyl-1,2-dioxirane | C3H6O2 | 详情 | 详情 |
合成路线3
该中间体在本合成路线中的序号：(XXI)The asymmetric catalytic aldol reaction of aldehyde (XVI) with acetophenone by means of a chiral lanthane catalyst yields a diastereomeric mixture of hydroxyketones from which the desired isomer (XVII) is isolated. The Baeyer-Villiger oxidation of (XVII) with trimethylsilyl peroxide and SnCl4 affords the phenyl ester (XVIII), which is deprotected with BCl3 in dichloromethane, giving the trihydroxyester (XIX). The selective protection of (XIX) with Tbdms-OTf and DIEA in dichloromethane yields the bis-silylated compound (XX), which is finally oxidized with DMP in dichloromethane to furnish the target undecenoic ester intermediate (XXI)
| 【1】 Sawada, D.; et al.; Enantioselective total synthesis of epothilones A and B using multifunctional asymmetric catalysis. J Am Chem Soc 2000, 122, 43, 10521. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XVI) | 44514 | 2-methyl-2-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]propanal | C16H28O3 | 详情 | 详情 | |
| (XVII) | 44515 | (3S)-3-hydroxy-4-methyl-1-phenyl-4-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]-1-pentanone | C24H36O4 | 详情 | 详情 | |
| (XVIII) | 44516 | phenyl (3S)-3-hydroxy-4-methyl-4-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]pentanoate | C24H36O5 | 详情 | 详情 | |
| (XIX) | 44517 | phenyl (3S,5R,6R,7S,8S)-3,5,7-trihydroxy-4,4,6,8-tetramethyl-10-undecenoate | C21H32O5 | 详情 | 详情 | |
| (XX) | 44518 | phenyl (3S,5R,6S,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-5-hydroxy-4,4,6,8-tetramethyl-10-undecenoate | C33H60O5Si2 | 详情 | 详情 | |
| (XXI) | 44519 | phenyl (3S,6R,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8-tetramethyl-5-oxo-10-undecenoate | C33H58O5Si2 | 详情 | 详情 |
合成路线4
该中间体在本合成路线中的序号：(XXI)Assembly of the target compound: The condensation of intermediates (XXI) and (XXXIII) by means of 9-BBN, a PdCl2 catalyst and K3PO4 in hot DMF/water gives the adduct (XXXIV), which is hydrolyzed with NaOH in methanol/water to yield the hydroxyacid (XXXV). The macrolactonization of (XXXV) by the Yamaguchi procedure using 2,4,6-trichlorobenzoyl chloride, TEA and DMAP in THF affords the macrolactone (XXXVI), which is desilylated with HF and pyridine in THF, furnishing the dihydroxylactone (XXXVII). Finally, this compound is epoxidated by means of dimethyldioxirane (XXXVIII) in dichloromethane to give the target epothilone B.
| 【1】 Sawada, D.; et al.; Enantioselective total synthesis of epothilones A and B using multifunctional asymmetric catalysis. J Am Chem Soc 2000, 122, 43, 10521. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XXI) | 44519 | phenyl (3S,6R,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8-tetramethyl-5-oxo-10-undecenoate | C33H58O5Si2 | 详情 | 详情 | |
| (XXXIII) | 46125 | (1S,3Z)-4-iodo-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-3-pentenyl acetate | C14H18INO2S | 详情 | 详情 | |
| (XXXIV) | 46126 | phenyl (3S,6R,7S,8S,12Z,15S,16E)-15-(acetoxy)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxo-12,16-heptadecadienoate | C47H77NO7SSi2 | 详情 | 详情 | |
| (XXXV) | 40835 | (3S,6R,7S,8S,12Z,15S,16E)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-15-hydroxy-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxo-12,16-heptadecadienoic acid | C39H71NO6SSi2 | 详情 | 详情 | |
| (XXXVI) | 40836 | (4S,7R,8S,9S,16S)-4,8-bis[[tert-butyl(dimethyl)silyl]oxy]-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxa-13-cyclohexadecene-2,6-dione | C39H69NO5SSi2 | 详情 | 详情 | |
| (XXXVII) | 40837 | (4S,7R,8S,9S,16S)-4,8-dihydroxy-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxa-13-cyclohexadecene-2,6-dione | C27H41NO5S | 详情 | 详情 | |
| (XXXVIII) | 31501 | 3,3-dimethyl-1,2-dioxirane | C3H6O2 | 详情 | 详情 |
合成路线5
该中间体在本合成路线中的序号：(XXI)The asymmetric catalytic aldol reaction of aldehyde (XVI) with acetophenone by means of a chiral lanthane catalyst yields a diastereomeric mixture of hydroxyketones from which the desired isomer (XVII) is isolated. The Baeyer-Villiger oxidation of (XVII) with trimethylsilyl peroxide and SnCl4 affords the phenyl ester (XVIII), which is deprotected with BCl3 in dichloromethane, giving the trihydroxyester (XIX). The selective protection of (XIX) with Tbdms-OTf and DIEA in dichloromethane yields the bis-silylated compound (XX), which is finally oxidized with DMP in dichloromethane to furnish the target undecenoic ester intermediate (XXI).
| 【1】 Sawada, D.; et al.; Enantioselective total synthesis of epothilones A and B using multifunctional asymmetric catalysis. J Am Chem Soc 2000, 122, 43, 10521. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XVI) | 44514 | 2-methyl-2-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]propanal | C16H28O3 | 详情 | 详情 | |
| (XVII) | 44515 | (3S)-3-hydroxy-4-methyl-1-phenyl-4-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]-1-pentanone | C24H36O4 | 详情 | 详情 | |
| (XVIII) | 44516 | phenyl (3S)-3-hydroxy-4-methyl-4-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]pentanoate | C24H36O5 | 详情 | 详情 | |
| (XIX) | 44517 | phenyl (3S,5R,6R,7S,8S)-3,5,7-trihydroxy-4,4,6,8-tetramethyl-10-undecenoate | C21H32O5 | 详情 | 详情 | |
| (XX) | 44518 | phenyl (3S,5R,6S,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-5-hydroxy-4,4,6,8-tetramethyl-10-undecenoate | C33H60O5Si2 | 详情 | 详情 | |
| (XXI) | 44519 | phenyl (3S,6R,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8-tetramethyl-5-oxo-10-undecenoate | C33H58O5Si2 | 详情 | 详情 |
合成路线6
该中间体在本合成路线中的序号：(XXI)Assembly of the target compound : The condensation of intermediates (XXI) and (XXXIII) by means of 9-BBN, a PdCl2 catalyst and K3PO4 in hot DMF/water gives the adduct (XXXIV), which is hydrolyzed with NaOH in methanol/water to yield the hydroxyacid (XXXV). The macrolactonization of (XXXV) by the Yamaguchi procedure using 2,4,6-trichlorobenzoyl chloride, TEA and DMAP in THF affords the macrolactone (XXXVI), which is finally desilylated with HF and pyridine in THF, furnishing the target epothilone D.
| 【1】 Sawada, D.; et al.; Enantioselective total synthesis of epothilones A and B using multifunctional asymmetric catalysis. J Am Chem Soc 2000, 122, 43, 10521. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XXI) | 44519 | phenyl (3S,6R,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8-tetramethyl-5-oxo-10-undecenoate | C33H58O5Si2 | 详情 | 详情 | |
| (XXXIII) | 46125 | (1S,3Z)-4-iodo-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-3-pentenyl acetate | C14H18INO2S | 详情 | 详情 | |
| (XXXIV) | 46126 | phenyl (3S,6R,7S,8S,12Z,15S,16E)-15-(acetoxy)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxo-12,16-heptadecadienoate | C47H77NO7SSi2 | 详情 | 详情 | |
| (XXXV) | 40835 | (3S,6R,7S,8S,12Z,15S,16E)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-15-hydroxy-4,4,6,8,12,16-hexamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxo-12,16-heptadecadienoic acid | C39H71NO6SSi2 | 详情 | 详情 | |
| (XXXVI) | 40836 | (4S,7R,8S,9S,16S)-4,8-bis[[tert-butyl(dimethyl)silyl]oxy]-5,5,7,9,13-pentamethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxa-13-cyclohexadecene-2,6-dione | C39H69NO5SSi2 | 详情 | 详情 |
合成路线7
该中间体在本合成路线中的序号：(XXI)The asymmetric catalytic aldol reaction of aldehyde (XVI) with acetophenone by means of a chiral lanthane catalyst yields a diastereomeric mixture of hydroxyketones from which the desired isomer (XVII) is isolated. The Baeyer-Villiger oxidation of (XVII) with trimethylsilyl peroxide and SnCl4 affords the phenyl ester (XVIII), which is deprotected with BCl3 in dichloromethane, giving the trihydroxyester (XIX). The selective protection of (XIX) with Tbdms-OTf and DIEA in dichloromethane yields the bis-silylated compound (XX), which is finally oxidized with DMP in dichloromethane to furnish the target undecenoic ester intermediate (XXI).
| 【1】 Sawada, D.; et al.; Enantioselective total synthesis of epothilones A and B using multifunctional asymmetric catalysis. J Am Chem Soc 2000, 122, 43, 10521. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XVI) | 44514 | 2-methyl-2-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]propanal | C16H28O3 | 详情 | 详情 | |
| (XVII) | 44515 | (3S)-3-hydroxy-4-methyl-1-phenyl-4-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]-1-pentanone | C24H36O4 | 详情 | 详情 | |
| (XVIII) | 44516 | phenyl (3S)-3-hydroxy-4-methyl-4-[(4R,5S,6S)-2,2,5-trimethyl-6-[(1S)-1-methyl-3-butenyl]-1,3-dioxan-4-yl]pentanoate | C24H36O5 | 详情 | 详情 | |
| (XIX) | 44517 | phenyl (3S,5R,6R,7S,8S)-3,5,7-trihydroxy-4,4,6,8-tetramethyl-10-undecenoate | C21H32O5 | 详情 | 详情 | |
| (XX) | 44518 | phenyl (3S,5R,6S,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-5-hydroxy-4,4,6,8-tetramethyl-10-undecenoate | C33H60O5Si2 | 详情 | 详情 | |
| (XXI) | 44519 | phenyl (3S,6R,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8-tetramethyl-5-oxo-10-undecenoate | C33H58O5Si2 | 详情 | 详情 |
合成路线8
该中间体在本合成路线中的序号：(XXI)Assembly of the target compound: The condensation of intermediates (XXI) and (XXXIV) by means of 9-BBN, a PdCl2 catalyst and K3PO4 in hot DMF/water gives the adduct (XXXV), which is hydrolyzed with NaOH in methanol/water to yield the hydroxyacid (XXXVI). The macrolactonization of (XXXVI) by the Yamaguchi procedure using 2,4,6-trichlorobenzoyl chloride, TEA and DMAP in THF affords the macrolactone (XXXVII), which is finally desilylated with HF and pyridine in THF to provide the target epothilone C.
| 【1】 Sawada, D.; et al.; Enantioselective total synthesis of epothilones A and B using multifunctional asymmetric catalysis. J Am Chem Soc 2000, 122, 43, 10521. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XXI) | 44519 | phenyl (3S,6R,7S,8S)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8-tetramethyl-5-oxo-10-undecenoate | C33H58O5Si2 | 详情 | 详情 | |
| (XXXIV) | 44493 | (1S,3Z)-4-iodo-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-3-butenyl acetate | C13H16INO2S | 详情 | 详情 | |
| (XXXV) | 44528 | phenyl (3S,6R,7S,8S,12Z,15S,16E)-15-(acetoxy)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxo-12,16-heptadecadienoate | C46H75NO7SSi2 | 详情 | 详情 | |
| (XXXVI) | 44473 | (3S,6R,7S,8S,12Z,15S,16E)-3,7-bis[[tert-butyl(dimethyl)silyl]oxy]-15-hydroxy-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxo-12,16-heptadecadienoic acid | C38H69NO6SSi2 | 详情 | 详情 | |
| (XXXVII) | 44446 | (4S,7R,8S,9S,16S)-4,8-bis[[tert-butyl(dimethyl)silyl]oxy]-5,5,7,9-tetramethyl-16-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]oxa-13-cyclohexadecene-2,6-dione | C38H67NO5SSi2 | 详情 | 详情 |