title: Four saponins from Oxytropis ochrocephala.
abstract: From Oxytropis ochrocephala Bunge, four saponins 1, 2, 3, and 4 were isolated. Saponins 1 and 2 are new compounds. The common genuine aglycone of the saponins is soyasapogenol B. The structures of those saponins were established by means of 13C-NMR, MS analyses, and chemical methods. In addition, a new interesting artifact aglycone 6 was obtained from the hydrolysate of these saponins and its structure was elucidated by spectral analyses and chemical transformations.
authors.affiliation: Research Institute of Fine Chemicals, East China University of Chemical Technology, Shanghai, People's Republic of China.
authors.forename: R Q
authors.initials: RQ
authors.lastname: Sun
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Jia
authors.forename: D L
authors.initials: DL
authors.lastname: Cheng
authors.forename: Z Q
authors.initials: ZQ
authors.lastname: Zhu
mesh_terms: D002240:Carbohydrate Sequence; D008969:Molecular Sequence Data; D010947:Plants, Toxic / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D012503:Saponins; D014315:Triterpenes