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【结 构 式】 
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【分子编号】43876 【品名】(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetoxy)-15-([(2R,3S)-3-(benzoylamino)-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy)-1-hydroxy-10,14,17,17-tetramethyl-11-oxo-9-[[(2,2,2-trichloroethoxy)carbonyl]oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]h 【CA登记号】 |
【 分 子 式 】C56H66Cl3NO16Si 【 分 子 量 】1143.58078 【元素组成】C 58.82% H 5.82% Cl 9.3% N 1.22% O 22.38% Si 2.46% |
合成路线1
该中间体在本合成路线中的序号：(XLIX)Condensation of (XLVII) with the chiral azetidinone (XLVIII) by means of LiHMDS in THF provides the protected paclitaxel precursor (LIX), which is finally deprotected with Zn in HOAc/water.
| 【1】 Kashima, H.; Kusama, H.; Hara, R.; Morihira, K.; Nakamura, N.; Kuwajima, I.; Kawahara, S.; Nishimori, T.; Enantioselective total synthesis of (-)-Taxol. J Am Chem Soc 2000, 122, 16, 3811. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XLVII) | 10448 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetoxy)-1,15-dihydroxy-10,14,17,17-tetramethyl-11-oxo-9-[[(2,2,2-trichloroethoxy)carbonyl]oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate | C34H39Cl3O13 | 详情 | 详情 | |
| (XLVIII) | 10490 | (3R,4S)-1-Benzoyl-4-phenyl-3-[(triethylsilyl)oxy]-2-azetanone | C22H27NO3Si | 详情 | 详情 | |
| (XLIX) | 43876 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetoxy)-15-([(2R,3S)-3-(benzoylamino)-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy)-1-hydroxy-10,14,17,17-tetramethyl-11-oxo-9-[[(2,2,2-trichloroethoxy)carbonyl]oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]h | C56H66Cl3NO16Si | 详情 | 详情 |
合成路线2
该中间体在本合成路线中的序号：(VI)An improved method for the obtaining of the desired product is the direct coupling of carboxylic acid derivative (VI) with L-tert-leucine methylamide (IX) by using EDC in CH2Cl2 to furnish methylamide derivative (X), followed by final treatment of (X) with hydroxylamine (NH2OH) in THF.
| 【1】 Davenport, R.J.; Watson, R.J.; An improved synthesis of the broad spectrum matrix metalloprotease inhibitor marimastat. Tetrahedron Lett 2000, 41, 41, 7983. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (VI) | 43876 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetoxy)-15-([(2R,3S)-3-(benzoylamino)-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy)-1-hydroxy-10,14,17,17-tetramethyl-11-oxo-9-[[(2,2,2-trichloroethoxy)carbonyl]oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]h | C56H66Cl3NO16Si | 详情 | 详情 | |
| (IX) | 18843 | (2S)-2-amino-N,3,3-trimethylbutanamide | 89226-12-0 | C7H16N2O | 详情 | 详情 |
| (X) | 43788 | (2R)-N-[(1S)-2,2-dimethyl-1-[(methylamino)carbonyl]propyl]-2-[(4S)-2,2-dimethyl-5-oxo-1,3-dioxolan-4-yl]-4-methylpentanamide | C18H32N2O5 | 详情 | 详情 |