Synthesis of enantiomerically pure d- and l-bicyclo[3.1.0]hexenyl carbanucleosides and their antiviral evaluation
作者:Ah-Young Park、Won Hee Kim、Jin-Ah Kang、Hye Jin Lee、Chong-Kyo Lee、Hyung Ryong Moon
DOI:10.1016/j.bmc.2011.05.026
日期:2011.7
group, a RCM reaction, and a Mitsunobu coupling reaction were used as key reactions. d-Counterpart nucleosides were also prepared according to the same synthetic method. Among the synthesized carbanucleosides, d-thymine nucleoside, d-2 and l-thymine nucleoside, l-2 exhibited excellent anti-HIV-1 and -2 activities, in MT-4 cells, which were higher than those of ddI, an anti-AIDS drug. Whereas d-2 exhibited
基于已知l-核苷的细胞毒性比d-对应物低的事实,通过采用从 ( R )-表氯醇,以寻找具有高效力和较低细胞毒性的新型抗 HIV 药物。串联烷基化、γ-内酯化、在γ-内酯官能团存在下化学选择性还原酯、RCM反应和Mitsunobu偶联反应被用作关键反应。d-对应的核苷也根据相同的合成方法制备。在合成的碳核苷中, d-胸腺嘧啶核苷、d - 2和l-胸腺嘧啶核苷、l - 2在 MT-4 细胞中表现出优异的抗 HIV-1 和 -2 活性,高于 ddI,一种抗-艾滋病药物。虽然d - 2在 MT-4 细胞系中表现出高细胞毒性,但l - 2在所有测试的细胞系中均未显示出任何可辨别的细胞毒性,这表明l - 2可能是抗艾滋病药物的良好候选者。l -2也显示出弱的抗HSV-2活性而没有细胞毒性。然而,合成的核苷都没有表现出对包括柯萨奇病毒、流感病毒、冠状病毒和脊髓灰质炎病毒在内的 RNA 病毒的抗病毒活性,这可能是由于它们的