... 1. Structures of (~)—Epicatechin 3-0-ga11atc (1) and Its Mcta- bolitcs (C) 1997 Pharmaceutical Society of ... Chemicals (——)—Epicatcchin 3—0—gallate (1), and (— )—epigallocatechin 3-O-gallate (17) were purchased from ... Epieatechin (2) was a product of Sigma Chemical Co. ...