Azabicyclic Amino Acids by Stereoselective Dearomatizing Cyclization of the Enolates of <i>N</i>-Nicotinoyl Glycine Derivatives
作者:Gareth Arnott、Jonathan Clayden、Stuart D. Hamilton
DOI:10.1021/ol062126s
日期:2006.11.9
by pyridine N-acylation, enolates of N-nicotinoyl and N-isonicotinoyl glycine and alanine derivativescyclize to yield 6,5-azabicyclic or 6,4-azaspirocyclic lactams. With an N-alpha-methyl-p-methoxybenzyl group the cyclization is diastereoselective; hydrogenation and deprotection yields azabicyclic aminoacids in 94:6 er.