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【结 构 式】 
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【分子编号】68460 【品名】(1R,2R)-methyl 1-amino-2-vinylcyclopropanecarboxylate 【CA登记号】 |
【 分 子 式 】C7H11NO2 【 分 子 量 】141.16988 【元素组成】C 59.56% H 7.85% N 9.92% O 22.67% |
合成路线1
该中间体在本合成路线中的序号：(Vb)Tripeptide derivative (VIII) is obtained by coupling of N-Boc-4(R)-hydroxy-L-proline (XIV) with methyl 1(R)-amino-2(S)-vinylcyclopropanecarboxylate (Vb) by means of TBTU and DIEA in DMF to afford amide (XV). Subsequent Mitsunobu condensation of alcohol (XV) with p-nitrobenzoic acid (PNBA) in the presence of PPh3 and DEAD in THF gives the fully protected dipeptide (XVI), from which the N-Boc group is removed by treatment with HCl in dioxane, yielding the corresponding amine (XVII) . Coupling of dipeptide ester (XVII) with N-(cyclopentyloxycarbonyl)-3-methyl-L-valine (XVIII) [prepared by condensation of cyclopentyl succinimidyl carbonate (XX) with 3-methyl-L-valine (XIX) by means of Et3N in THF/H2O in the presence of TBTU and DIEA in CH2Cl2 provides tripeptide derivative (XXI), which by selective hydrolysis of the PNB ester (XXI) by means of LiOH in H2O/THF produces the tripeptide derivative (VIII) .
| 【3】 Bhardwaj, P., Forgione, P., Goudreau, N. et al. (Boehringer Ingelheim International GmbH). Hepatitis C inhibitor compounds. EP 1654261, JP 2006528937, JP 2010043129, US 2005020503, US 2011177030, US 8067438, WO 2004103996. |
| 【1】 Llinas-Brunet, M., Bailey, M.D., Goudreau, N. et al. Discovery of a potent and selective noncovalent linear inhibitor of the hepatitis C virus NS3 protease (BI 201335). J Med Chem 2010, 53(17): 6466-76. |
| 【2】 Llinas-Brunet, M., Bailey, M., Bhardwaj, P. et al. (Boehringer Ingelheim International GmbH & Co. KG). Hepatitis C inhibitor compounds. US 7585845. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (Vb) | 68460 | (1R,2R)-methyl 1-amino-2-vinylcyclopropanecarboxylate | C7H11NO2 | 详情 | 详情 | |
| (VIII) | 68436 | (1S,2R)-methyl 1-((2R,4R)-1-(2-(((cyclopentyloxy)carbonyl)amino)-3,3-dimethylbutanoyl)-4-hydroxypyrrolidine-2-carboxamido)-2-vinylcyclopropanecarboxylate | C24H37N3O7 | 详情 | 详情 | |
| (XIV) | 16094 | (2S,4R)-1-(tert-butoxycarbonyl)-4-hydroxypyrrolidine-2-carboxylic acid;1-(tert-butoxycarbonyl)-4®-hydroxy-L-proline;(2S,4R)-1-(tert-butoxycarbonyl)-4-hydroxytetrahydro-1H-pyrrole-2-carboxylic acid | 16094 | C10H17NO5 | 详情 | 详情 |
| (XV) | 68440 | (4S)-tert-butyl 4-hydroxy-2-(((1R,2S)-1-(methoxycarbonyl)-2-vinylcyclopropyl)carbamoyl)pyrrolidine-1-carboxylate | C17H26N2O6 | 详情 | 详情 | |
| (XVI) | 68441 | (2S,4R)-tert-butyl 2-(((1R,2S)-1-(methoxycarbonyl)-2-vinylcyclopropyl)carbamoyl)-4-((4-nitrobenzyl)oxy)pyrrolidine-1-carboxylate | C24H31N3O8 | 详情 | 详情 | |
| (XVII) | 68439 | (1R,2S)-methyl 1-((2R,4R)-4-((4-nitrobenzyl)oxy)pyrrolidine-2-carboxamido)-2-vinylcyclopropanecarboxylate hydrochloride | C19H23N3O6.HCl | 详情 | 详情 | |
| (XVIII) | 68442 | 2-(((cyclopentyloxy)carbonyl)amino)-3,3-dimethylbutanoic acid;N-(cyclopentyloxycarbonyl)-3-methyl-L-valine | C12H21NO4 | 详情 | 详情 | |
| (XIX) | 28445 | (2S)-2-amino-3,3-dimethylbutyric acid | C6H13NO2 | 详情 | 详情 | |
| (XX) | 68443 | cyclopentyl succinimidyl carbonate;N-(Cyclopentyloxycarbonyloxy)succinimide;1-[[(cyclopentyloxy)carbonyl]oxy]-2,5-Pyrrolidinedione | 128595-07-3 | C10H13NO5 | 详情 | 详情 |
| (XXI) | 68437 | (1R,2S)-methyl 1-((2S,4R)-1-(2-(((cyclopentyloxy)carbonyl)amino)-3,3-dimethylbutanoyl)-4-((4-nitrobenzyl)oxy)pyrrolidine-2-carboxamido)-2-vinylcyclopropanecarboxylate | C31H42N4O9 | 详情 | 详情 |