Facile Iterative Synthesis of 2,5-Terpyrimidinylenes as Nonpeptidic α-Helical Mimics
作者:Laura Anderson、Mingzhou Zhou、Vasudha Sharma、Jillian M. McLaughlin、Daniel N. Santiago、Frank R. Fronczek、Wayne C. Guida、Mark L. McLaughlin
DOI:10.1021/jo100272d
日期:2010.6.18
A facile iterative synthesis of 2,5-terpyrimidinylenes that are structurally analogous to alpha-helix mimics is presented. Condensation of amidines with readily prepared alpha,beta-unsaturated alpha-cyanoketones gives 5-cyano-substituted pyrimidines. Iterative transformation of the 5-cyano group into an amidine allows synthesis of 2,5-terpyrimidinylenes with variable groups at the 4-, 4'-, and 4 ''-positions. These compounds are designed to mimic the i, i + 4, and i + 7 sites of an alpha-helix.