作者:Indrajit Giri、Pascal J. Bolon、Chung K. Chu
DOI:10.1080/07328319608002379
日期:1996.1
A general method for the synthesis of 2'-C-alpha-methyl-2',3'-dideoxynucleosides is presented. Stereofacial selectivity of the 2-C-methylation reaction of gamma-lactone has been investigated, in which the presence of a bulky group at the 5-hydroxymethyl produced the alpha-isomer as a major product. During glycosylation, the alpha-methyl group directed the formation of nucleosides in favor of the beta-isomer. This methodology is applied to the synthesis of some new pyrimidine and purine nucleosides.