Regioselective Mannich-type C-nucleosidations of pyrroline derivatives 3 and 8 with 7-carba-purines and 4-aminopyrimidines occur under mild conditions to afford C(8)- and C(5)-azanucleosides, respectively.
在温和条件下,
吡咯烷衍
生物3和8与7-碳
嘌呤和4-
氨基嘧啶发生区域选择性的Mannich型C-核苷化反应,分别生成C(8)和C(5)氮杂核苷。