作者:Chung K. Chu、Li Ma、Sureyya Olgen、Claire Pierra、Jinfa Du、Giuseppe Gumina、Elizabeth Gullen、Yung-Chi Cheng、Raymond F. Schinazi
DOI:10.1021/jm990113x
日期:2000.10.1
anti-HBV activities. It was of interest to obtain the enantiomerically pure isomers to determine if they have differential antiviral activities. However, due to the difficult and time-consuming nature of enantiomeric synthesis, a chiral HPLC separation was performed to obtain optical isomers from the corresponding racemic mixtures. Each pair of enantiomers of Se-ddC and Se-FddC was separated by an amylose
由于二氧戊环和氧杂硫杂环戊烷核苷已显示出有希望的抗病毒和抗癌活性,因此有兴趣合成等电取代的氧杂环戊烷烷核苷,其中3'-CH(2)被硒原子取代。为了研究结构活性关系,从关键中间体(+/-)-2-苯甲酰氧基甲基-1,2-氧杂戊烯醇5-乙酸酯(6)合成了各种嘧啶和嘌呤氧杂戊烯醇核苷(6)。在合成的外消旋核苷中,胞嘧啶和5-氟胞嘧啶类似物表现出有效的抗HIV和抗HBV活性。获得对映体纯的异构体以确定它们是否具有不同的抗病毒活性是令人感兴趣的。但是,由于对映异构体合成困难且耗时,进行手性HPLC分离,从相应的外消旋混合物中获得旋光异构体。通过使用100%2-丙醇的流动相的直链淀粉手性柱分离Se-ddC和Se-FddC的每对对映异构体。结果表明,胞嘧啶和氟胞嘧啶核苷的大多数抗HIV活性都与(-)-异构体共同存在。