Two-Component Method to Enantiopure Quinolizidinones and Indolizidinones. Total Synthesis of (−)-Lasubine II
作者:Dawei Ma、Wei Zhu
DOI:10.1021/ol016802w
日期:2001.11.1
together with piperidines or pyrrolidines 4. Hydrolysis of 4 to the corresponding carboxylic acids followed by treatment of acetic anhydride/triethylamine gives 3 in high yields. Using 3a as a key intermediate, (-)-lasubineII is synthesized in four steps. [reaction: see text]