New approach to the synthesis of 3-triazolylalanine

CHED 447

Alisha Weight, aweight@alum.wellesley.edu, David R. Haines, DHaines@Wellesley.edu, and Kristin A. Moy, kristin.moy@alum.wellesley.edu. Department of Chemistry, Wellesley College, 106 Central Street, Wellesley, MA 02481
Synthesis of a histidine analog to probe the structure-activity relationship of the interaction of the short peptide glucagon-like peptide-1 (GLP-1) with its receptor GLP-1R, has been pursued. Through biochemical studies, the N-terminal histidine of GLP-1 has been shown to be necessary for activation of GLP-1R, but less important for binding. Synthesis of the histidine analog 3-triazolylalanine (1) has been attempted from triazole through reaction with the appropriate protected amino acrylate. Enantiomeric resolution can be achieved enzymatically. Synthetic challenges and results will be discussed.