Short, enantiogenic syntheses of (-)-indolizidine 167B and (+)-monomorine
作者:Charles W. Jefford、Qian Tang、Alexander Zaslona
DOI:10.1021/ja00009a043
日期:1991.4
The enantiogenic syntheses of (−)-indolizidine 167B (1) and (+)-monomorine (2) are described. D-Norvaline and L-alanine are converted into their 1-pyrrole derivatives by reaction with 2,5-dimethoxytetrahydrofuran. Thereafter, Arndt-Eistert homologation of the N-alkanoic acid substituent, followed by rhodium (II) acetate catalyzed decomposition of its α-diazo ketone derivative, provides the relevant