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【结 构 式】 
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【药物名称】SB-T-1213 【化学名称】Benzoic acid (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-acetoxy-9-[3(S)-(tert-butoxycarbonylamino)-2(R)-hydroxy-5-methyl-4-hexenoyloxy]-4,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-6-(propionyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxet-12-yl ester 【CA登记号】 【 分 子 式 】C44H59NO15 【 分 子 量 】841.95853 |
【开发单位】State University of New York,Stony Brook (Originator) 【药理作用】ONCOLYTIC DRUGS, Taxanes |
合成路线1
Lithium enolate (II), generated from chiral ester (I) and LDA at -84 C, was cyclocondensed with imine (III) to furnish azetidinone (IV). The N-p-methoxyphenyl group of (IV) was then removed by oxidative treatment with ceric ammonium nitrate at -10 C, and the resulting azetidinone (V) was protected with Boc2O to afford tert-butyl carbamate (VI).
| 【1】 Lin, S.; et al.; Syntheses and biological activity of advanced second-generation taxoids. 216th ACS Natl Meet (Aug. 23-27, Boston) 1998, Abst MEDI 315. |
| 【2】 Takahashi, N.; et al.; Growth inhibition of gastric cancer cells by troglitazone, a ligand for peroxisome proliferator-activated receptor. Dig Dis Week (May 16 1999, Orlando) 1999, Abst 3684. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (II) | 21730 | 2-(Triisopropylsilyloxy)-1-(2(S)-phenyl-1(R)-cyclohexyl)vinyl-1-ol lithium salt | C23H37LiO3Si | 详情 | 详情 | |
| (IV) | 21732 | (3R,4S)-1-(4-methoxyphenyl)-4-[(E)-1-propenyl]-3-[(triisopropylsilyl)oxy]-2-azetidinone | C22H35NO3Si | 详情 | 详情 | |
| (V) | 19156 | (3R,4S)-4-(2-methyl-1-propenyl)-3-[(triisopropylsilyl)oxy]-2-azetidinone | C16H31NO2Si | 详情 | 详情 | |
| (VI) | 19157 | tert-butyl (2S,3R)-2-(2-methyl-1-propenyl)-4-oxo-3-[(triisopropylsilyl)oxy]-1-azetidinecarboxylate | C21H39NO4Si | 详情 | 详情 |
合成路线2
The C-7 hydroxyl group of 10-deacetyl baccatin III (VII) was selectively protected with triethylsilyl chloride and imidazole to yield silyl ether (VIII). Subsequent selective acylation of (VIII) at C-10 hydroxyl group with propionyl chloride in the presence of LiN(SiMe3)2 afforded ester (IX). The title taxoid was then obtained by further coupling with b-lactam (VI) using LiN(SiMe3)2 in THF at low temperature, followed by desilylation with HF in pyridine.
| 【1】 Lin, S.; et al.; Syntheses and biological activity of advanced second-generation taxoids. 216th ACS Natl Meet (Aug. 23-27, Boston) 1998, Abst MEDI 315. |
| 【2】 Takahashi, N.; et al.; Growth inhibition of gastric cancer cells by troglitazone, a ligand for peroxisome proliferator-activated receptor. Dig Dis Week (May 16 1999, Orlando) 1999, Abst 3684. |
| 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) | 19157 | tert-butyl (2S,3R)-2-(2-methyl-1-propenyl)-4-oxo-3-[(triisopropylsilyl)oxy]-1-azetidinecarboxylate | C21H39NO4Si | 详情 | 详情 | |
| (VII) | 10467 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetoxy)-1,9,12,15-tetrahydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate | 32981-86-5 | C29H36O10 | 详情 | 详情 |
| (VIII) | 21737 | (1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetoxy)-1,12,15-trihydroxy-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 | C35H50O10Si | 详情 | 详情 | |
| (IX) | 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 |