Steroidal glycosides of the 14,15-Seco-18-Nor-Pregnane series from cynanchum ascyrifolium

Autor: Hosup Yeo, Jinwoong Kim, Young-Hee Choi, Kwang-Wook Kim
Rok vydání: 1998
Předmět:
Zdroj: Phytochemistry. 49:1129-1133
ISSN: 0031-9422
DOI: 10.1016/s0031-9422(97)01064-9
Popis: Three new steroidal glycosides named cynascyrosides A–C were isolated from the roots of Cynanchum ascyrifolium . The structures of these compounds were determined on the basis of spectroscopic and chemical evidence as cynajapogenin A 3- O - α - d -oleandropyranosyl-(1 → 4)- β - l -cymaropyranosyl-(1 → 4)- β - d -digitoxopyranoside; cynajapogenin A 3- O - β - d -glucopyranosyl-(1 → 4)- α - l -cymaropyranosyl-(1 → 4)- β - l -cymaropyranosyl-(1 → 4)- β - l -cymaropyranoside; cynajapogenin A 3- O - β - d -glucopyranosyl-(1 → 4)- α - l -cymaropyranosyl-(1 → 4)- β - d -digitoxopyranosyl-(1 → 4)- β - l -cymaropyranoside.
Databáze: OpenAIRE