C-Nucleosidations with 2,6-Diamino-5,8-diaza-7,9-dicarba-purine1
摘要:
Endocyclic iminium ions derived from (L)-4-amino-threose derivatives smoothly react with 2,6-diamino-5,8-diaza-7,9-dicarba-purine to give corresponding C(9)-nucleosides in high yields.
The title compound, a constitutional isomer of the natural nucleobase 2,6-diaminopurine, undergoes regioselective electrophilic substitutions at carbon C-9.