作者:Tianwen Hu、Yuanchao Xie、Fuqiang Zhu、Xudong Gong、Yin Liu、Haitao Xue、Haji A. Aisa、Jingshan Shen
DOI:10.1021/acs.oprd.1c00419
日期:2022.2.18
were as follows: (1) The presence of N,N-dimethylformamide dimethyl acetal (DMF-DMA) facilitated the selective protection of 2′,3′-dihydroxyls and amino of cytidine, which eliminated the negative impact of these groups on the following isobutyrylation at 5′-hydroxyl. (2) Degradations of the product in the deprotection stage were avoided since a mild condition was used. (3) The achievement of deprotection
开发了一种由胞苷制备莫努匹韦的一锅法工艺。该合成的优点如下:(1)N , N-二甲基甲酰胺二甲基缩醛(DMF-DMA)的存在促进了胞苷的2',3'-二羟基和氨基的选择性保护,消除了对胞苷的负面影响。这些基团在下面的 5'-羟基上进行异丁酰化。(2)由于使用了温和的条件,避免了产品在脱保护阶段的降解。(3)一步脱保护和羟基胺化,提高了合成效率。(4)通过结晶得到高纯度的莫努匹拉韦(通过高效液相色谱(HPLC)分析纯度高达99.7%),产率为63%。