Medicinal plants of Thailand. Constituents in the seed kernels of Entada rheedei

摘要

Four new oleanane-type triterpene oligoglycosides, one new amide glucoside, three new thioamide glycoside and two new phenylpropanoid glycosides from the seed kernels of Entada rheedei. The oleanane-type triterpene oligoglycosides were found to contain Nacetylglucosamine as a sugar component. Their structures were elucidated based on spectral and chemical evidence.