title: A new bisabolane sesquiterpenoid from Euphorbia chrysocoma.
abstract: The new sesquiterpenoid (6R)-2-chloro-6-[(1S)-1,5-dimethylhex-4-en-1-yl]-3-methylcyclohex-2-en-1-one (1), together with ten known compounds, (6R)-6-[(1S)-1,5-dimethylhex-4-en-1-yl]-3-methylcyclohex-2-en-1-one (2), bauerenol acetate (3), lupenone (4), alpha-amyrenone (5), beta-sitosterol (6), stigmasterol (7), beta-amyrin (8), ursolic acid (9), betulinic acid (10), scopolin (11), have been isolated from the roots of Euphorbia chrysocoma Lévl. et Vant. Their structures have been elucidated by spectroscopic data.
authors.affiliation: Department of Natural Medicine Chemistry, China Pharmaceutical University, Nanjing 210009, China.
authors.forename: H-M
authors.initials: HM
authors.lastname: Shi
authors.forename: B-S
authors.initials: BS
authors.lastname: Long
authors.forename: X-M
authors.initials: XM
authors.lastname: Cui
authors.forename: Z-D
authors.initials: ZD
authors.lastname: Min
mesh_terms: D028481:Euphorbia / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared
chemical_list: D012717:Sesquiterpenes