Two new C21 steroidal glycosides from Cynanchum wallichii Wight.
Two new C21 steroidal glycosides, characterized with caudatin as the aglycone moiety and 2,6-dideoxy-pyranoses as component sugars, have been isolated from the roots of Cynanchum wallichii Wight. Their structures were elucidated as caudatin-3-O-beta-D-cymaropyranosyl-(1 --> 4)-beta-d-digitoxopyranoside (1) and caudatin-3-O-beta-D-oleandropyranosyl-(1 --> 4)-beta-D-cymaropyranoside (2) by spectroscopic evidence.
Chen
Gang
G
School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China.
Wang
Ding
D
Pei
Yue-Hu
YH
D031105:Cynanchum / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D013256:Steroids / Q000737:chemistry*
D006027:Glycosides; D013256:Steroids; C532699:caudatin-3-O-beta-D-cymaropyranosyl-(1-4)-beta-D-digitoxopyranoside; C532700:caudatin-3-O-beta-D-oleandropyranosyl-(1-4)-beta-D-cymaropyranoside