作者:Masahiko Seki、Masanori Hatsuda、Yoshikazu Mori、Shin-ichi Yamada
DOI:10.1016/s0040-4039(02)00537-3
日期:2002.4
(+)-Biotin was synthesized in 11 steps and in 25% overall yield from readily accessible l-cysteine through a Lewis base-catalyzed highly diastereoselective cyanosilylation of (2R,4R)-N-Boc-2-phenylthiazolidine-4-carbaldehyde 2 and a ring closure of a cis-allylic carbonate 5b utilizing a palladium-catalyzed intramolecular allylic amination.
(+)-生物素通过11步合成,并通过路易斯碱催化的(2 R,4 R)-N -Boc-2-苯基噻唑烷-4-甲醛2和利用钯催化的分子内烯丙基胺化的顺式-烯丙基碳酸酯5b的闭环。