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【结 构 式】 
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【分子编号】38549 【品名】methyl (2S)-2-[(3-[[(benzyloxy)carbonyl]amino]propyl)amino]-3-methylbutanoate 【CA登记号】 |
【 分 子 式 】C17H26N2O4 【 分 子 量 】322.40452 【元素组成】C 63.33% H 8.13% N 8.69% O 19.85% |
合成路线1
该中间体在本合成路线中的序号：(XX)The intermediate 3-methyl 2(S)-(2-oxoperhydropyrimidin1-yl)butyric acid (XIII) has been obtained as follows: The oxidation of 3-(benzyloxycarbonylamino)-1-propanol (XVII) with oxalyl chloride in dichloromethane gives the corresponding aldehyde (XVIII), which is reductocondensed with L-valine methyl ester (XIX) by means NaBH3CN in methanol yielding the N-substituted valine (XX). The cyclization of (XX) by elimination of the benzyloxycarbonyl group by hydrogenation with H2 over Pd/C in dichloromethane, followed by reaction with carbonyldiimidazole (CDI) affords the 3-methyl 2(S)-(2-oxoperhydropyrimidin-1-yl)butyric acid methyl ester (XXI). Finally, this compound is hydrolyzed with LiOH in dioxane/water to afford the target intermediate (XIII).
| 【1】 Retroviral protease inhibiting cpds.. EP 0882024; JP 2000502085; US 5914332; WO 9721685 . |
| 【2】 Sham, H.L.; Stewart, K.D.; Kempf, D.J. (Abbott Laboratories Inc.); Retroviral protease inhibiting cpds.. EP 0876353; JP 2000502997; WO 9721683 . |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (XIII) | 38264 | (2S)-3-methyl-2-[2-oxotetrahydro-1(2H)-pyrimidinyl]butyric acid | C9H16N2O3 | 详情 | 详情 | |
| (XVII) | 38547 | benzyl 3-hydroxypropylcarbamate | C11H15NO3 | 详情 | 详情 | |
| (XVIII) | 38548 | benzyl 3-oxopropylcarbamate | C11H13NO3 | 详情 | 详情 | |
| (XIX) | 16613 | methyl (2S)-2-amino-3-methylbutanoate | C6H13NO2 | 详情 | 详情 | |
| (XX) | 38549 | methyl (2S)-2-[(3-[[(benzyloxy)carbonyl]amino]propyl)amino]-3-methylbutanoate | C17H26N2O4 | 详情 | 详情 | |
| (XXI) | 38550 | methyl (2S)-3-methyl-2-[2-oxotetrahydro-1(2H)-pyrimidinyl]butanoate | C10H18N2O3 | 详情 | 详情 |