Patent ID: 6720432
Filing Date: 2004-04-13
Classification: C07D,Y02P

Abstract:
A protected dimer selected from the group consisting of 5,7,3â€²,4â€²-tetra-O-benzyl-3-O-(tert-butyldimethylsilyl)epicatechin-4&agr;,8-[5,7,3â€²,4â€²-tetra-O-benzyl-3-O(tert-butyldimethylsilyl) epicatechin]; 3,5,7,3â€²,4â€²-penta-O-benzylepicatechin-4&agr;,8-(3,5,7,3â€²,4â€²-penta-O-benzylepicatechin); and 5,7,3â€²,4â€²-tetra-O-benzylepicatechin-4&agr;,8-(5,7,3â€²,4â€²-tetra-O-benzylepicatechin).