Design, Synthesis, and Binding Affinities of Pyrrolinone-Based Somatostatin Mimetics
作者:Amos B. Smith、Adam K. Charnley、Eugen F. Mesaros、Osamu Kikuchi、Wenyong Wang、Andrew Benowitz、Chi-Lien Chu、Jin-Jye Feng、Kuo-Hsin Chen、Atsui Lin、Fong-Chi Cheng、Laurie Taylor、Ralph Hirschmann
DOI:10.1021/ol0476974
日期:2005.2.1
Tetrapyrrolinone somatostatin (SRIF) mimetics (cf. 1), based on a heterochiral (D,L-Mixed) pyrrolinone scaffold, were designed, synthesized, and evaluated for biological activity. The iterative synthetic sequence, incorporating the requisite functionalized coded and noncoded amino acid side chains, comprised a longest linear synthetic sequence of 23 steps. Binding affinities at two somatostatin receptor subtypes (hsst 4 and 5) reveal micromolar activity, demonstrating that the D,L-Mixed pyrrolinone scaffold can be employed to generate functional mimetics of peptide beta-turns.