title: Two new C21 steroidal glycosides from Cynanchum wallichii Wight.
abstract: 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.
authors.affiliation: School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
authors.forename: Ding
authors.initials: D
authors.lastname: Wang
authors.forename: Yue-Hu
authors.initials: YH
authors.lastname: Pei
mesh_terms: D031105:Cynanchum / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D013256:Steroids / Q000737:chemistry*
chemical_list: 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