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【结 构 式】

【分子编号】44494

【品名】(1S,3Z,8S,9S,10R,11R)-9-(benzyloxy)-11,13-bis[[tert-butyl(dimethyl)silyl]oxy]-8,10,12,12-tetramethyl-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-3-tridecenyl acetate

【CA登记号】

【 分 子 式 】C45H77NO5SSi2

【 分 子 量 】800.34712

【元素组成】C 67.53% H 9.7% N 1.75% O 10% S 4.01% Si 7.02%

与该中间体有关的原料药合成路线共 2 条

合成路线1

该中间体在本合成路线中的序号:(XXVIII)

Assembly of the target compound: The condensation of intermediates (XVI) and (XXVII) by means of 9-BBN, a Pd catalyst and Cs2CO3 in THF/DMF gives the adduct (XXVIII), which is selectively deprotected with HF/pyridine in THF, yielding the primary alcohol (XXIX). The oxidation of (XXIX) with DMP in dichloromethane affords the aldehyde (XXX), which is condensed with the silyl enol ether (XXXI) by means of TiCl4 in dichloromethane to provide the isopropyl carboxylate (XXXII). The desilylation of (XXXII) with TBAF in THF gives the dihydroxyester (XXXIII), which is selectively monosilylated with Tbdms-Cl and imidazole, yielding the hydroxyester (XXXIV). The oxidation of (XXXIV) with DMP in dichloromethane affords the ketoester (XXXV), which was submitted to a basic hydrolysis of its acetoxy and isopropyl ester groups with NaOH in refluxing methanol to furnish the hydroxyacid (XXXVI).

1 Panek, J.S.; Zhu, B.; Total synthesis of apothilone A. Org Lett 2000, 2, 17, 2575.
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) 44487 (5R)-5-[(1R,2S,3S)-2-(benzyloxy)-1,3-dimethyl-5-hexenyl]-2,2,3,3,6,6,9,9,10,10-decamethyl-4,8-dioxa-3,9-disilaundecane; benzyl (1S,2S)-1-((1R,2R)-2,4-bis[[tert-butyl(dimethyl)silyl]oxy]-1,3,3-trimethylbutyl)-2-methyl-4-pentenyl ether C32H60O3Si2 详情 详情
(XXVII) 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
(XXVIII) 44494 (1S,3Z,8S,9S,10R,11R)-9-(benzyloxy)-11,13-bis[[tert-butyl(dimethyl)silyl]oxy]-8,10,12,12-tetramethyl-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-3-tridecenyl acetate C45H77NO5SSi2 详情 详情
(XXIX) 44495 (1S,3Z,8S,9S,10R,11R)-9-(benzyloxy)-11-[[tert-butyl(dimethyl)silyl]oxy]-13-hydroxy-8,10,12,12-tetramethyl-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-3-tridecenyl acetate C39H63NO5SSi 详情 详情
(XXX) 44496 (1S,3Z,8S,9S,10R,11R)-9-(benzyloxy)-11-[[tert-butyl(dimethyl)silyl]oxy]-8,10,12,12-tetramethyl-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-13-oxo-3-tridecenyl acetate C39H61NO5SSi 详情 详情
(XXXI) 44497 1-isopropoxyvinyl trimethylsilyl ether; [(1-isopropoxyvinyl)oxy](trimethyl)silane C8H18O2Si 详情 详情
(XXXII) 44498 isopropyl (3S,5R,6R,7S,8S,12Z,15S,16E)-15-(acetoxy)-7-(benzyloxy)-5-[[tert-butyl(dimethyl)silyl]oxy]-3-hydroxy-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-12,16-heptadecadienoate C44H71NO7SSi 详情 详情
(XXXIII) 44499 isopropyl (3S,5R,6S,7S,8S,12Z,15S,16E)-15-(acetoxy)-7-(benzyloxy)-3,5-dihydroxy-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-12,16-heptadecadienoate C38H57NO7S 详情 详情
(XXXIV) 44500 isopropyl (3S,5R,6S,7S,8S,12Z,15S,16E)-15-(acetoxy)-7-(benzyloxy)-3-[[tert-butyl(dimethyl)silyl]oxy]-5-hydroxy-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-12,16-heptadecadienoate C44H71NO7SSi 详情 详情
(XXXV) 44501 isopropyl (3S,6R,7S,8S,12Z,15S,16E)-15-(acetoxy)-7-(benzyloxy)-3-[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxo-12,16-heptadecadienoate C44H69NO7SSi 详情 详情
(XXXVI) 44502 (3S,6R,7S,8S,12Z,15S,16E)-7-(benzyloxy)-3-[[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 C39H61NO6SSi 详情 详情

合成路线2

该中间体在本合成路线中的序号:(XXVIII)

Assembly of the target compound: The condensation of intermediates (XVI) and (XXVII) by means of 9-BBN, a Pd catalyst and Cs2CO3 in THF/DMF gives the adduct (XXVIII), which is selectively deprotected with HF/pyridine in THF, yielding the primary alcohol (XXIX). The oxidation of (XXIX) with DMP in dichloromethane affords the aldehyde (XXX), which is condensed with the silyl enol ether (XXXI) by means of TiCl4 in dichloromethane to provide the isopropyl carboxylate (XXXII). The desilylation of (XXXII) with TBAF in THF gives the dihydroxyester (XXXIII), which is selectively monosilylated with Tbdms-Cl and imidazole, yielding the hydroxyester (XXXIV). The oxidation of (XXXIV) with DMP in dichloromethane affords the ketoester (XXXV), which was submitted to a basic hydrolysis of its acetoxy and isopropyl ester groups with NaOH in refluxing methanol to furnish the hydroxyacid (XXXVI).

1 Panek, J.S.; Zhu, B.; Total synthesis of apothilone A. Org Lett 2000, 2, 17, 2575.
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) 44487 (5R)-5-[(1R,2S,3S)-2-(benzyloxy)-1,3-dimethyl-5-hexenyl]-2,2,3,3,6,6,9,9,10,10-decamethyl-4,8-dioxa-3,9-disilaundecane; benzyl (1S,2S)-1-((1R,2R)-2,4-bis[[tert-butyl(dimethyl)silyl]oxy]-1,3,3-trimethylbutyl)-2-methyl-4-pentenyl ether C32H60O3Si2 详情 详情
(XXVII) 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
(XXVIII) 44494 (1S,3Z,8S,9S,10R,11R)-9-(benzyloxy)-11,13-bis[[tert-butyl(dimethyl)silyl]oxy]-8,10,12,12-tetramethyl-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-3-tridecenyl acetate C45H77NO5SSi2 详情 详情
(XXIX) 44495 (1S,3Z,8S,9S,10R,11R)-9-(benzyloxy)-11-[[tert-butyl(dimethyl)silyl]oxy]-13-hydroxy-8,10,12,12-tetramethyl-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-3-tridecenyl acetate C39H63NO5SSi 详情 详情
(XXX) 44496 (1S,3Z,8S,9S,10R,11R)-9-(benzyloxy)-11-[[tert-butyl(dimethyl)silyl]oxy]-8,10,12,12-tetramethyl-1-[(E)-1-methyl-2-(2-methyl-1,3-thiazol-4-yl)ethenyl]-13-oxo-3-tridecenyl acetate C39H61NO5SSi 详情 详情
(XXXI) 44497 1-isopropoxyvinyl trimethylsilyl ether; [(1-isopropoxyvinyl)oxy](trimethyl)silane C8H18O2Si 详情 详情
(XXXII) 44498 isopropyl (3S,5R,6R,7S,8S,12Z,15S,16E)-15-(acetoxy)-7-(benzyloxy)-5-[[tert-butyl(dimethyl)silyl]oxy]-3-hydroxy-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-12,16-heptadecadienoate C44H71NO7SSi 详情 详情
(XXXIII) 44499 isopropyl (3S,5R,6S,7S,8S,12Z,15S,16E)-15-(acetoxy)-7-(benzyloxy)-3,5-dihydroxy-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-12,16-heptadecadienoate C38H57NO7S 详情 详情
(XXXIV) 44500 isopropyl (3S,5R,6S,7S,8S,12Z,15S,16E)-15-(acetoxy)-7-(benzyloxy)-3-[[tert-butyl(dimethyl)silyl]oxy]-5-hydroxy-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-12,16-heptadecadienoate C44H71NO7SSi 详情 详情
(XXXV) 44501 isopropyl (3S,6R,7S,8S,12Z,15S,16E)-15-(acetoxy)-7-(benzyloxy)-3-[[tert-butyl(dimethyl)silyl]oxy]-4,4,6,8,16-pentamethyl-17-(2-methyl-1,3-thiazol-4-yl)-5-oxo-12,16-heptadecadienoate C44H69NO7SSi 详情 详情
(XXXVI) 44502 (3S,6R,7S,8S,12Z,15S,16E)-7-(benzyloxy)-3-[[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 C39H61NO6SSi 详情 详情
Extended Information