title: A new sesquiterpene from Ixeris chinensis.
abstract: The petroleum ether (PE) extract from Ixeris chinensis was submitted to chromatographic separation. A new sesquiterpene, namely 14-noreudesma-3-hydroxy-3-en-2,9-dione, was isolated from the PE extract. The structures of the sesquiterpene was elucidated by using spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.
authors: a College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities , Tongliao 028000 Inner Mongolia , P.R. China.
authors: Qinghu
authors: Q
authors: Wang
authors: Nayintai
authors: N
authors: Dai
authors: Narenchaoketu
authors: N
authors: Han
authors: Rongjun
authors: R
authors: Wu
authors: Jiesi
authors: J
authors: Wu
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C000594070:14-noreudesma-3-hydroxy-3-en-2,9-dione; D004365:Drugs, Chinese Herbal; D012717:Sesquiterpenes
keywords: Ixeris chinensis; sesquiterpene; spectroscopic methods