title: 7-Oxodihydrokarounidiol [7-oxo-D:C-friedo-olean-8-ene-3 alpha,29-diol], a novel triterpene from Trichosanthes kirilowii.
abstract: The structure of 7-oxodihydrokarounidiol [7-oxo-D:C-friedo-olean-8-ene-3 alpha,29-diol], isolates from the seeds of Trichosanthes kirilowii (Cucurbitaceae), was determined by chemical correlation with karounidiol [D:C-friedo-oleana-7,9(11)-diene-3 alpha,29-diol] from the same source. Two other natural products, viz. bryonolic acid (3 beta-hydroxy-D:C-friedo-olean-8-en-29-oic acid) and bryononic acid (3-oxo-D:C-friedo-olean-8-en-29-oic acid), were also correlated with karounidiol.
authors.affiliation: College of Science and Technology, Nihon University, Tokyo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Akihisa
authors.forename: W C
authors.initials: WC
authors.lastname: Kokke
authors.forename: T
authors.initials: T
authors.lastname: Tamura
authors.forename: T
authors.initials: T
authors.lastname: Nambara
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry*; D010944:Plants / Q000737:chemistry
chemical_list: D010936:Plant Extracts; C076913:7-oxodihydrokarounidiol; D009828:Oleanolic Acid