A pyrimidine-based "flexible" bisubstrate analog inhibitor of human thymidylate synthase
作者:In Young Yang、R. Mark Slusher、Arthur D. Broom、T. Ueda、Yung Chi Cheng
DOI:10.1021/jm00119a012
日期:1988.11
The synthesis and characterization of two "flexible" bisubstrate analogues of the intermediate in the thymidylate synthase reaction are reported. Steric constraints are minimized and diasteromeric mixtures avoided by using a pyrimidine-based analogue as the folate portion of the inhibitor while retaining all known important binding sites. A preliminary assessment of certain conformational parameters by NMR is presented. The compounds are shown to be potent competitive inhibitors with respect to dUMP or 5,10-CH2-H4PteGlu but gave mixed kinetics with respect to 5,10-CH2-H4PteGlu5 for human thymidylate synthase.