A Facile Synthesis of a Key Intermediate for (+)-Biotin via Strecker Reaction
作者:Masahiko Seki、Yoshikazu Mori、Mayumi Kimura
DOI:10.1055/s-2003-42399
日期:——
(syn-anti, 2:1). Amidation of 5b and subsequent cyclization gave bicyclic compound 6, which, upon reduction with zinc dust, hydrolysis and subsequent cyclization, furnished thiolactone 2, a key intermediate for (+)-biotin (1).