This invention relates to new process for preparing certain optically active purine substituted cyclopentene derivatives and novel intermediates used in this process. In particular, the invention concerns the synthesis of the 1R-cis isomer of carbovir, (1R-cis)-amino-1,9-dihydro-9-[4-(hydroxymethyl)-2-cyclopenten-1-yl]-6H-pur in-6-one, an antiviral agent, and certain intermediates.
本发明涉及一种制备特定光学活性
嘌呤取代
环戊烯衍
生物和用于该过程的新型中间体的新工艺。具体地,本发明涉及合成卡波韦尔的1R-cis异构体,即(1R-cis)-
氨基-1,9-二氢-9-[4-(羟甲基)-2-
环戊烯-1-基]-
6H-嘌呤-6-酮,一种抗病毒药物,以及某些中间体。