Enantioselective synthesis of 5-substituted- and 3,5-disubstituted-2-formylpyrrolidine derivatives, the key D-ring fragments of (−)-quinocarcin and (−)-10-decarboxyquinocarcin
作者:Tadashi Katoh、Yuriko Nagata、Yuko Kobayashi、Katsuko Arai、Junko Minami、Shiro Terashima
DOI:10.1016/s0040-4039(00)73849-4
日期:1993.9
The title synthesis was achieved starting from (S)-glutamic acid and (S)-pyroglutamic acid by featuring formation of an N-protected aminal, substitution of the methoxy group with cyanide anion, and reduction of the cyanide to an aldehyde as common key steps.