Medicinal plants of Thailand. I structures of rheedeiosides A-D and cis-entadamide A β-D-glucopyranoside from the seed kernels of Entada rheedei

Sachiko Sugimoto; Katsuyoshi Matsunami; Hideaki Otsuka

doi:10.1248/cpb.59.466

Medicinal plants of Thailand. I structures of rheedeiosides A-D and cis-entadamide A β-D-glucopyranoside from the seed kernels of Entada rheedei

Chem Pharm Bull (Tokyo). 2011;59(4):466-71. doi: 10.1248/cpb.59.466.

Authors

Sachiko Sugimoto¹, Katsuyoshi Matsunami, Hideaki Otsuka

Affiliation

¹ Department of Pharmacognosy, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan.

PMID: 21467675
DOI: 10.1248/cpb.59.466

Abstract

Four new oleanane-type triterpene oligoglycosides, named rheedeiosides A, B, C and D, and one new thioamide glycoside, cis-entadamide A β-D-glucopyranoside, were isolated from the seed kernels of a Thai medicinal plant, Entada rheedei SPRENGEL. The rheedeiosides were found to contain N-acetylglucosamine as a sugar component. Their structures were elucidated based on spectral and chemical evidence.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Acetylglucosamine / chemistry
Acrylamides / chemistry*
Acrylamides / isolation & purification
Fabaceae / chemistry*
Isomerism
Magnetic Resonance Spectroscopy
Molecular Conformation
Plants, Medicinal / chemistry
Saponins / chemistry*
Saponins / isolation & purification
Seeds / chemistry
Thailand
Triterpenes / chemistry

Substances

Acrylamides
Saponins
Triterpenes
entadamide A
Acetylglucosamine