摘要 从Dreea sinensis var. 干燥的根茎中分离得到一种新的孕烷苷酯,dreeoside。corrugata 根据化学反应和光谱证据,其结构确定为 12-O-benzoyl-drevogenin-3-O-β-d-oleandropyranosyl(1 →4)-O-β-d-cymaropyranosyl(1 →4 )- O -β- d -cymaropyranoside。
摘要 从Dreea sinensis var. 干燥的根茎中分离得到一种新的孕烷苷酯,dreeoside。corrugata 根据化学反应和光谱证据,其结构确定为 12-O-benzoyl-drevogenin-3-O-β-d-oleandropyranosyl(1 →4)-O-β-d-cymaropyranosyl(1 →4 )- O -β- d -cymaropyranoside。
Activity-guided fractionation of the stems of Marsdenia tenacissima led to the isolation of five new pregnane glycosides, namely marstenacissides E (1), F (2), G (3), H (4), and I (5). Their structures were determined on the basis of 1H and 13C NMR, COSY, TOCSY, ROESY, and FABMS experiments.
A pregnane triglycoside ester from Dregea sinensis var corrugata
作者:Jin Qiduan、Zhou Qianlan、Mu Quanzhang
DOI:10.1016/0031-9422(89)80232-8
日期:1989.1
Abstract A new pregnane glycoside ester, dregeoside, was isolated from the dried rhizome of Dregea sinensis var. corrugata On the basis of chemical reactions and spectroscopic evidence, the structure was established as 12- O -benzoyl-drevogenin-3- O -β- d -oleandropyranosyl (1 →4)- O -β- d -cymaropyranosyl(1 →4)- O -β- d -cymaropyranoside.
摘要 从Dreea sinensis var. 干燥的根茎中分离得到一种新的孕烷苷酯,dreeoside。corrugata 根据化学反应和光谱证据,其结构确定为 12-O-benzoyl-drevogenin-3-O-β-d-oleandropyranosyl(1 →4)-O-β-d-cymaropyranosyl(1 →4 )- O -β- d -cymaropyranoside。