Chemical and Pharmaceutical Bulletin 1991-May
Woodfordin D and oenothein A, trimeric hydrolyzable tannins of macro-ring structure with antitumor activity.
Alleen geregistreerde gebruikers kunnen artikelen vertalen
Log in Schrijf in
De link wordt op het klembord opgeslagen
Sleutelwoorden
Abstract
Two new antitumor trimeric hydrolyzable tannins, woodfordin D (5) and oenothein A (13), were isolated from the dried flowers of Woodfordia fruticosa, and their macrocyclic structures, which have a novel constituent unit (woodfordinoyl group) connecting the monomers, have been elucidated on the basis of spectral and chemical evidence. Oenothein A (13) was also isolated from the leaves of Oenothera biennis.