作者:Debendra Mohapatra、Jhillu Yadav、B. Kumar、K. Bhaskar
DOI:10.1055/s-0029-1219557
日期:2010.4
A concise and efficient carbohydrate-based approach for the total syntheses of (+)-garvensintriol and (+)-5-epi-garvensintriol is described in nine and six steps with 20% and 37% overall yield, respectively, starting from a known intermediate. A sequence of Grignard-assisted lactol opening with terminal alkyne, stereoselective keto reduction and oxidative lactonization are the key reactions.
本文报道了一种简便高效的全合成方法,以已知中间体为起始物,分别经过九步和六步反应,总产率分别为20%和37%,成功合成了(+)-加文酮醇和(+)-5-表加文酮醇。关键反应包括格氏试剂辅助的端炔开环、立体选择性酮还原和氧化内酯化反应。