摘要:
The jamaicamides, isolated from cyanobacterium Lyngbya majuscula in Jamaica, are unique mixed polyketide-peptides that are reported to be blockers of the sodium channels. The peptide moiety contains a pyrrolinone ring and a beta-methoxy enone functionality. Herein, we report the stereoselective synthesis of the N-(Boc)(2)-protected peptide moiety of the jamaicamides by utilizing Meldrum's acid starting from L-alanine and N-Boc-beta-alanine. (C) 2011 Elsevier Ltd. All rights reserved.