title: C19-Diterpenoid alkaloids from Delphinium umbrosum.
abstract: Three new C(19)-diterpenoid alkaloids, umbrosumines A-C (1-3), and 11 known compounds (4-14) were isolated from the roots of Delphinium umbrosum. Their structures were elucidated on the basis of the spectroscopic data interpretation.
authors.affiliation: Department of Chemistry of Medicinal Natural Products, West China College of Pharmacy, Sichuan University, Chengdu, China.
authors.forename: Feng-Zheng
authors.initials: FZ
authors.lastname: Chen
authors.forename: Qiao-Hong
authors.initials: QH
authors.lastname: Chen
authors.forename: Feng-Peng
authors.initials: FP
authors.lastname: Wang
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D031882:Delphinium / Q000737:chemistry*; D004224:Diterpenes / Q000737:chemistry; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry
chemical_list: D000470:Alkaloids; D004224:Diterpenes; D004365:Drugs, Chinese Herbal; C550651:umbrosumine A; C550652:umbrosumine B; C550653:umbrosumine C