title: A new tetranortriterpenoid from the roots of Atalantia buxifolia.
abstract: A new tetranortriterpenoid, named 6-deacetyl-severinolide, together with six known tetranortriterpenoids severinolide, acetyl-isoepiatalantin, 7-isovaleroylcycloepiatalantin, cycloepiatalantin, 7-isovaleroylcycloseverinolide, and atalantin, was isolated from the ethanol extract of the roots of Atalantia buxifolia collected in Hainan. Their structures were elucidated by spectroscopic methods including 1D and 2D NMR (HMQC, ¹H-¹H COSY, HMBC, and NOESY).
authors.affiliation: Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Yang
authors.forename: Yan-Bo
authors.initials: YB
authors.lastname: Zeng
authors.forename: Zhi-Kai
authors.initials: ZK
authors.lastname: Guo
authors.forename: Wen-Jian
authors.initials: WJ
authors.lastname: Zuo
authors.forename: Shan-Shan
authors.initials: SS
authors.lastname: Ma
authors.forename: Shan-Shan
authors.initials: SS
authors.lastname: Li
authors.forename: Wen-Li
authors.initials: WL
authors.lastname: Mei
authors.forename: Hao-Fu
authors.initials: HF
authors.lastname: Dai
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D036701:Limonins / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D027821:Rutaceae / Q000737:chemistry*
chemical_list: C574153:6-deacetylseverinolide; D004365:Drugs, Chinese Herbal; D036701:Limonins