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【结 构 式】 
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【分子编号】16264 【品名】(4R)-5-[(3aS,8aR)-2,2-dimethyl-8,8a-dihydro-2H-indeno[1,2-d][1,3]oxazol-3(3aH)-yl]-4-benzyl-2-hydroxy-5-oxopentyl methanesulfonate 【CA登记号】 |
【 分 子 式 】C25H31NO6S 【 分 子 量 】473.59028 【元素组成】C 63.4% H 6.6% N 2.96% O 20.27% S 6.77% |
合成路线1
该中间体在本合成路线中的序号：(XXVII)5) The double bond of the pentenylamide (X) (as obtained in Scheme 1) is oxidized with OsO4 and N-methylmorpholine N-oxide in tert-butanol/water to give the 4(R,S),5-dihydroxy-compound (XXVI), which is esterified selectively with methanesulfonyl chloride, yielding the terminal monomesylate (XXVII). The condensation of (XXVII) with the chiral piperazine (VII) by means of K2CO3 in hot isopropanol yields the condensation product (XXVIII) with the (R,S)-configuration at the 4-OH group. The optical resolution of this 4-OH group with (S)-(+)-camphosulfonic acid affords the protected hydroxy-amide (XXV), already obtained in Scheme 19918303a.
| 【1】 Mealy, N.; Castaner, J.; Indinavir Sulfate. Drugs Fut 1996, 21, 6, 600. |
| 【2】 Vacca, J.P.; Guare, J.P.; Dorsey, B.D.; Holloway, M.K.; Hungate, R.W. (Merck & Co., Inc.); HIV protease inhibitors in pharmaceutical combinations for the treatment of AIDS. EP 0617968; JP 1996508496; WO 9422480 . |
| 【3】 Vacca, J.P.; Dorsey, B.D.; Guare, J.P.; Holloway, M.K.; Hungate, R.W.; Levin, R.B. (Merck & Co., Inc.); HIV protease inhibitors useful for the treatment of AIDS. EP 0696277; JP 1996509980; US 5413999; WO 9426717 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (VII) | 16244 | tert-butyl (3S)-3-[(tert-butylamino)carbonyl]tetrahydro-1(2H)-pyrazinecarboxylate | 150323-35-6 | C14H27N3O3 | 详情 | 详情 |
| (X) | 16247 | (2S)-1-[(3aS,8aR)-2,2-dimethyl-8,8a-dihydro-2H-indeno[1,2-d][1,3]oxazol-3(3aH)-yl]-2-benzyl-4-penten-1-one | C24H27NO2 | 详情 | 详情 | |
| (XXV) | 16262 | tert-butyl (3S)-4-[(2S,4R)-5-[(3aS,8aR)-2,2-dimethyl-8,8a-dihydro-2H-indeno[1,2-d][1,3]oxazol-3(3aH)-yl]-4-benzyl-2-hydroxy-5-oxopentyl]-3-[(tert-butylamino)carbonyl]-1-piperazinecarboxylate | C38H54N4O6 | 详情 | 详情 | |
| (XXVI) | 16263 | (2R)-1-[(3aS,8aR)-2,2-dimethyl-8,8a-dihydro-2H-indeno[1,2-d][1,3]oxazol-3(3aH)-yl]-2-benzyl-4,5-dihydroxy-1-pentanone | C24H29NO4 | 详情 | 详情 | |
| (XXVII) | 16264 | (4R)-5-[(3aS,8aR)-2,2-dimethyl-8,8a-dihydro-2H-indeno[1,2-d][1,3]oxazol-3(3aH)-yl]-4-benzyl-2-hydroxy-5-oxopentyl methanesulfonate | C25H31NO6S | 详情 | 详情 | |
| (XXVIII) | 16265 | tert-butyl (3S)-4-[(4R)-5-[(3aS,8aR)-2,2-dimethyl-8,8a-dihydro-2H-indeno[1,2-d][1,3]oxazol-3(3aH)-yl]-4-benzyl-2-hydroxy-5-oxopentyl]-3-[(tert-butylamino)carbonyl]-1-piperazinecarboxylate | C38H54N4O6 | 详情 | 详情 |