J Nat Prod. 2000 Aug; 63(8): 1121-6.

Tetrasaccharide multi-esters and xanthone glycosides from the roots of Polygala wattersii.

Kobayashi W, Miyase T, Suzuki S, Noguchi H, Chen XM.

School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Shizuoka 422-8526, Japan.

Ten new tetrasaccharide multi-esters, watteroses A-J (1-10), and two new xanthone glycosides, wattersiixanthones A (11) and B (12), were isolated from the roots of Polygala wattersii, together with 11 known compounds (10 oligosaccharide multi-esters and a xanthone glycoside). The structures of new compounds were elucidated on the basis of chemical and spectroscopic evidence.