title: A new monodesmosidic triterpenoid saponin from the seeds of Vigna unguiculata subsp. unguiculata.
abstract: A new triterpenoid saponin, 3-O-[alpha-L-rhamnopyranosyl-(1-->4)-beta-D- galactopyranosyl-(1-->4)-beta-D-glucuronopyranosyl]-soyaspogeno l B [1] was isolated along with cycloartenol, stigmasterol, 3-O-acetyloleanolic acid, and sitosterol 3-beta-D-glucoside from a methanolic extract of the seeds of Vigna unguiculata subsp. unguiculata. The structure of 1 was elucidated by spectroscopic and chemical means.
authors.affiliation: H.E.J. Research Institute of Chemistry, University of Karachi, Pakistan.
authors.forename: M
authors.initials: M
authors.lastname: Noorwala
authors.forename: F V
authors.initials: FV
authors.lastname: Mohammad
authors.forename: V U
authors.initials: VU
authors.lastname: Ahmad
mesh_terms: D002240:Carbohydrate Sequence; D006868:Hydrolysis; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D008969:Molecular Sequence Data; D009828:Oleanolic Acid / Q000031:analogs & derivatives*; D010936:Plant Extracts / Q000032:analysis; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D014315:Triterpenes / Q000737:chemistry*
chemical_list: C095786:3-O-(rhamnopyranosyl-1-4-galactopyranosyl-1-4-glucuronopyranosyl)soyasapogenol B; D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes; D009828:Oleanolic Acid