Synthesis of chiral threefold and sixfold functionalized macrocyclic imidazole peptides
作者:Áron Pintér、Gebhard Haberhauer
DOI:10.1016/j.tet.2009.01.047
日期:2009.3
(S)-valine, chiral imidazole diamino monocarboxylic acids as well as diamino dicarboxylic acids were prepared in a few synthetic steps. Macrolactamization of the side chain protected imidazole amino acids yields the corresponding 18- and 24-membered ring analogues of the naturally occurring cyclic peptide Westiellamide with various anchoring sites. The threefold functionalized scaffolds 2b–4b and the sixfold