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【结 构 式】 
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【分子编号】10615 【品名】(4S,5R)-3-Benzoyl-2-(4-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylic acid 【CA登记号】 |
【 分 子 式 】C24H21NO5 【 分 子 量 】403.43448 【元素组成】C 71.45% H 5.25% N 3.47% O 19.83% |
合成路线1
该中间体在本合成路线中的序号：(VII)A new synthesis of paclitaxel has been described: The condensation of Oppolzer's L-(+)-2,10-camphorsultam (I) with 2-(4-methoxybenzyloxy)acetyl chloride (II) by means of NaH gives the corresponding substituted sultam (III), which is condensed with N-benzoylbenzaldehydeimine (IV) by means of lithium bis(trimethylsilyl)amide, yielding the protected side-chain (V) of paclitaxel. The reaction of (V) with DDQ affords oxazolidine (VI), which is hydrolyzed with LiOH/H2O2 to the free oxazolidine-carboxylic acid (VII). The esterification of (VII) with baccatin III (VIII) by means of dicyclohexylcarbodiimide (DCC) affords the protected paclitaxel derivative (IX), which is finally treated with HCl in ethanol.
| 【1】 Kanazawa, A.M.; Greene, A.E.; Denis, J.-N.; Direct, stereoselective synthesis of the protected paclitaxel (Taxol) side chain and high-yield transformation to paclitaxel. J Chem Soc Chem Commun 1994, 2591. |
| 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) | 10609 | (1R,5S,7S)-10,10-Dimethyl-3lambda(6)-thia-4-azatricyclo[5.2.1.0(1,5)]decane-3,3-dione | C10H17NO2S | 详情 | 详情 | |
| (II) | 10610 | 2-[(4-Methoxybenzyl)oxy]acetyl chloride | C10H11ClO3 | 详情 | 详情 | |
| (III) | 10611 | (1R,5S,7S)-4-[2-[(4-Methoxybenzyl)oxy]acetyl]-10,10-dimethyl-3lambda(6)-thia-4-azatricyclo[5.2.1.0(1,5)]decane-3,3-dione | C20H27NO5S | 详情 | 详情 | |
| (IV) | 10612 | N-[(Z)-Benzylidene]benzamide | C14H11NO | 详情 | 详情 | |
| (V) | 10613 | N-[(1S,2R)-3-[(1R,5S,7S)-10,10-Dimethyl-3,3-dioxo-3lambda(6)-thia-4-azatricyclo[5.2.1.0(1,5)]dec-4-yl]-2-[(4-methoxybenzyl)oxy]-3-oxo-1-phenylpropyl]benzamide | C34H38N2O6S | 详情 | 详情 | |
| (VI) | 10614 | (1R,5S,7S)-4-[[(4S,5R)-3-Benzoyl-2-(4-methoxyphenyl)-4-phenyl-1,3-oxazolidin-5-yl]carbonyl]-10,10-dimethyl-3lambda(6)-thia-4-azatricyclo[5.2.1.0(1,5)]decane-3,3-dione | C34H36N2O6S | 详情 | 详情 | |
| (VII) | 10615 | (4S,5R)-3-Benzoyl-2-(4-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylic acid | C24H21NO5 | 详情 | 详情 | |
| (VIII) | 10473 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetoxy)-1,15-dihydroxy-10,14,17,17-tetramethyl-11-oxo-9-[(triethylsilyl)oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate | C37H52O11Si | 详情 | 详情 | |
| (IX) | 57903 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetyloxy)-2-(benzoyloxy)-1-hydroxy-10,14,17,17-tetramethyl-11-oxo-9-[(triethylsilyl)oxy]-6-oxatetracyclo[11.3.1.0~3,10~.0~4,7~]heptadec-13-en-15-yl (2R,4S,5R)-3-benzoyl-2-(4-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylate | C61H71NO15Si | 详情 | 详情 |