Trapanins A and B, oligomeric hydrolyzable tannins from Trapa japonica Flerov

Autor: Akira Okonogi, Tsutomu Hatano, Takuo Okuda, Kazufumi Yazaki
Rok vydání: 1990
Předmět:
Zdroj: Chemical and Pharmaceutical Bulletin. 38:2707-2711
ISSN: 1347-5223
0009-2363
DOI: 10.1248/cpb.38.2707
Popis: Trapanin A (6), a trimeric hydrolyzable tannin, and trapanin B (7), a tetrameric hydrolyzable tannin, were isolated from the leaves of Trapa japonica (Trapaceae), and their structures were determined on the basis of spectroscopic and chemical data. The following tannins were also isolated from the leaves : cornusiin C (8) (trimer); cornusiin A (3), camptothin B (4) and cornusiin D (5) (dimer); gemin D (1), tellimagrandin I (2), pedunculagin, casuarictin and casuarinin (monomer).
Databáze: OpenAIRE