Tea is a daily drink for most people, and one of its major ingredients, Keyboards epigallocatechin-3-gallate (EGCG), has been widely recognized as a potent antioxidant with diverse biological activities.However, its low stability and bioavailability hinder its further clinical applications.In this study, we designed and synthesized a novel EGCG-valine derivative 4 by replacing the gallic acid with a valine moiety in four steps.The structural elucidation of derivative 4 was performed using NMR, IR, mass, and UV spectroscopies.
Additionally, the physicochemical properties of 4 were predicted by SwissADME, showing Water Hose Coupler improved drug-like parameters and intestinal absorption compared to the parent compound EGCG.