GALLOYLHOMOARBUTIN AND RELATED POLYPHENOLS FROM PYROLA INCARNATA

Article abstract of DOI:10.1016/0031-9422(89)80060-3

A new polyphenol, 6-O-galloylhomoarbutin was isolated from Pyrola incarnata, along with (+)-catechin, (-)-epicatechin gallate, procyanidin B1, B3, B2-3'-O-gallate, B2-3,3'-di-O-gallate, hyperin and hyperin-2"-O-gallate.Hyperin-2"-O-gallate, one of the main components, showed strong tanning activity. - Keywords: Pyrola incarnata; Pyrolaceae; polyphenols; 6-O-galloylhomoarbutin; 2"-O-galloylhyperin; procyanidins.