title: A new natural lactone from Dimocarpus longan Lour. seeds.
abstract: A new natural product named longanlactone was isolated from Dimocarpus longan Lour. seeds. Its structure was determined as 3-(2-acetyl-1H--pyrrol-1-yl)-5-(prop-2-yn-1-yl)dihydrofuran-2(3H)-one by spectroscopic methods and HRESIMS.
authors.affiliation: Guangdong Food and Drug Vocational College, Guangzhou, Guangdong, China. zhenggm@gdyzy.edu.cn
authors.forename: Gongming
authors.initials: G
authors.lastname: Zheng
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Wei
authors.forename: Liangxiong
authors.initials: L
authors.lastname: Xu
authors.forename: Zhongjun
authors.initials: Z
authors.lastname: Li
authors.forename: Gangyong
authors.initials: G
authors.lastname: Liu
authors.forename: Xiance
authors.initials: X
authors.lastname: Zhang
mesh_terms: D002725:Chloroform / Q000737:chemistry; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification*; D011758:Pyrroles / Q000737:chemistry / Q000302:isolation & purification*; D029631:Sapindaceae / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013056:Spectrophotometry, Ultraviolet; D044366:Transition Temperature
chemical_list: C576580:3-(2-acetyl-1H-pyrrol-1-yl)-5-(prop-2-yn-1-yl)dihydrofuran-2(3H)-one; D007783:Lactones; D010936:Plant Extracts; D011758:Pyrroles; D012997:Solvents; D002725:Chloroform