<i>De Novo</i> Synthesis of <scp>l</scp>-Colitose and <scp>l</scp>-Rhodinose Building Blocks
作者:Oliviana Calin、Rajan Pragani、Peter H. Seeberger
DOI:10.1021/jo201883k
日期:2012.1.20
A divergent, practical, and efficient denovosynthesis of fullyfunctionalized l-colitose (3,6-dideoxy-l-galactose), 2-epi-colitose (3,6-dideoxy-l-talose), and l-rhodinose (2,3,6-trideoxy-l-galactose) building blocks has been achieved using inexpensive, commercially available (S)-ethyl lactate as the starting material. The routes center around a diastereoselective Cram-chelated allylation that provides