title: Structure elucidation and NMR assignments of a new triterpenoid from Ixeris chinensis.
abstract: A new triterpenoid, namely 3β-hydroxy-13β,28-epoxyolean-11-enyl trans-caffeate (1), was isolated from the EtOAc extract from Ixeris chinensis Nakai. The structures of 1 were elucidated by spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.
authors.affiliation: a College of Traditional Mongolian Medicine , Inner Mongolia University for Nationalities , Tongliao , China.
authors.forename: Shuyan
authors.initials: S
authors.lastname: Li
authors.affiliation: a College of Traditional Mongolian Medicine , Inner Mongolia University for Nationalities , Tongliao , China.
authors.forename: Qinghu
authors.initials: Q
authors.lastname: Wang
authors.affiliation: a College of Traditional Mongolian Medicine , Inner Mongolia University for Nationalities , Tongliao , China.
authors.forename: Baiyinmuqier
authors.initials: B
authors.lastname: Bao
authors.affiliation: a College of Traditional Mongolian Medicine , Inner Mongolia University for Nationalities , Tongliao , China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Han
authors.affiliation: a College of Traditional Mongolian Medicine , Inner Mongolia University for Nationalities , Tongliao , China.
authors.forename: Jiesi
authors.initials: J
authors.lastname: Wu
mesh_terms: D000085:Acetates; D019659:Asteraceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D013057:Spectrum Analysis; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D000085:Acetates; D010936:Plant Extracts; D014315:Triterpenes
keywords: 3β-hydroxy-13β,28-epoxyolean-11-enyl trans-caffeate; Ixeris chinensis; compositae; spectroscopic methods