title: Nortriterpenoids from Chukrasia tabularis var. velutina.
abstract: Five new limonoids, tabularisins E-I ( 1- 5), and a new dinorcycloartane, (24 R)-28,29-dinor-cycloartane-3beta,24,25-triol ( 6), together with three known compounds, were isolated from the twigs and leaves of Chukrasia tabularis var. velutina. Their structures were elucidated primarily on the basis of spectroscopic methods.
authors.affiliation: State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai, 201203, People's Republic of China.
authors.forename: Chuan-Rui
authors.initials: CR
authors.lastname: Zhang
authors.forename: Sheng-Ping
authors.initials: SP
authors.lastname: Yang
authors.forename: Qiao
authors.initials: Q
authors.lastname: Zhu
authors.forename: Shang-Gao
authors.initials: SG
authors.lastname: Liao
authors.forename: Yan
authors.initials: Y
authors.lastname: Wu
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Yue
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D036701:Limonins / Q000737:chemistry / Q000302:isolation & purification*; D029582:Meliaceae / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C524911:(24R)-28,29-dinor-cycloartane-3beta,24,25-triol; D004365:Drugs, Chinese Herbal; D036701:Limonins; D014315:Triterpenes; C085352:cycloartane