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Legume saponins of Gleditsia japonica Miquel. V. 13C Nuclear magnetic resonance spectral studies on the structures of gleditsia saponins D2, G and I.

1982; Pharmaceutical Society of Japan; Volume: 30; Issue: 11 Linguagem: Inglês

10.1248/cpb.30.4082

1347-5223

Takao Konoshima, TOKUNOSUKE SAWADA,

Plant biochemistry and biosynthesis

Three triterpenoid saponins named gleditsia saponins D2 (VII), G (IV) and I (VIII) were isolated from the legume of Gleditsia japonica cv.'Saponifera.' They were characterized as echinocystic acid 3, 28-O-bisglycosides acylated with two monoterpene carboxylic acids IX and X. The locations of these monoterpenes were established by 13C nuclear magnetic resonance spectroscopy.