Enantioselective Synthesis of Protected <scp>l</scp>-4-[Sulfonamido(difluoromethyl)]phenylalanine and <scp>l</scp>-4-[Sulfonamido(methyl)]phenylalanine and an Examination of Hexa- and Tripeptide Platforms for Evaluating pTyr Mimics for PTP1B Inhibition
作者:Bryan Hill、Vanessa Ahmed、Daniel Bates、Scott D. Taylor
DOI:10.1021/jo061496r
日期:2006.10.1
These amino acids were incorporated into two peptide sequences, DADE-X-LNH2 and FmocGlu(OBn)-X-LNH2, which have previously been employed as platforms for assessing pTyr mimics for inhibition of protein tyrosine phosphatase 1B (PTP1B). Inhibition studies with these and other peptides and PTP1B revealed that good inhibition could be obtained using the tripeptide platform, although the presence of a pTyr