Synthesis of Cyclopentenyl Carbocyclic Nucleosides as Potential Antiviral Agents Against Orthopoxviruses and SARS
作者:Jong Hyun Cho、Dale L. Bernard、Robert W. Sidwell、Earl R. Kern、Chung K. Chu
DOI:10.1021/jm0509750
日期:2006.2.1
D-ribose (4). The key intermediate (+)-12a was utilized for the synthesis of unnatural five-membered ring heterocyclic carbocyclic nucleosides. The newly synthesized 1,2,3-triazole analogue (17c) exhibited potent antiviral activity (EC(50) 0.4 microM) against vaccinia virus and moderate activities (EC(50) 39 microM) against cowpox virus and severe acute respiratory syndrome coronavirus (SARSCoV) (EC(50)
已开发出一种实用且方便的合成手性环戊烯醇衍生物(+)-12a的方法,作为用于合成生物活性碳环核苷的关键中间体。选择性保护烯丙基羟基,然后与Grubbs催化剂进行闭环复分解(RCM)反应,可提供10 g规模的(+)-12a,D-核糖的总收率为52%(4)。关键中间体(+)-12a用于合成非天然的五元环杂环碳环核苷。新合成的1,2,3-三唑类似物(17c)对牛痘病毒显示有效的抗病毒活性(EC(50)0.4 microM),对牛痘病毒和严重的急性呼吸系统综合症冠状病毒(EC(50)39 microM)具有中等活性(EC(50)39 microM)( SARSCoV)(EC(50)47 microM)。1,2