title: Five new pregnane glycosides from Cynanchum taiwanianum.
abstract: Five new pregnane glycosides, taiwanosides A [1], B [2], C [3], D [4], and E [5], together with wilfosides C1N [6], C2N [7], M1N [8], and K1N [9], were isolated from the roots of Cynanchum taiwanianum. Their structures were determined on the basis of spectroscopic and chemical evidence.
authors.affiliation: National Research Institute of Chinese Medicine, Taipei Hsien, Taiwan.
authors.forename: Y L
authors.initials: YL
authors.lastname: Lin
authors.forename: T C
authors.initials: TC
authors.lastname: Lin
authors.forename: Y H
authors.initials: YH
authors.lastname: Kuo
mesh_terms: D000107:Acetylation; D002240:Carbohydrate Sequence; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D006027:Glycosides / Q000032:analysis*; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D010936:Plant Extracts / Q000032:analysis; D018517:Plant Roots / Q000737:chemistry; D013624:Taiwan
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D010936:Plant Extracts