摘要:
There is provided a method for resolving a compound of formula III, in the cis configuration: There is also provided a process for producing optically active compound of formula I or II: wherein: R1, R2, R3 are as defined herein, the method and process involving the production, recovery and conversion of diastereomeric salts.
摘要翻译:提供了以顺式构型分解式III化合物的方法:还提供了制备式I或II的光学活性化合物的方法:其中:R 1,R SUB R 2,R 3,R 3和R 3如本文所定义,涉及非对映异构体盐的生产,回收和转化的方法和方法。
摘要:
The present invention relates to methods and compositions for preparing biologically important nucleoside analogues containing 1,3-dioxolane sugar rings. In particular, this invention relates to the stereoselective synthesis of the beta (cis) isomer by glycosylating the base with an intermediate of formula (II) below a temperature of about -10.degree. C. ##STR1## wherein R.sub.1 and L are as defined herein.
摘要:
The present invention relates to methods and compositions for preparing biologically important nucleoside analogues containing 1,3-dioxolane sugar rings. In particular, this invention relates to the stereoselective synthesis of the beta (cis) isomer by glycosylating the base with an intermediate of formula (II) below a temperature of about -10.degree. C. ##STR1## wherein R.sub.1 and L are defined herein.