title: Mexicanolides from the seeds of a Krishna mangrove, Xylocarpus moluccensis.
abstract: Two new mexicanolides, named xylomexicanolides A and B, were isolated from the seeds of an Indian mangrove, Xylocarpus moluccensis, together with four known limonoids, khayasin, angolensic acid methyl ester, khayasin T, and 2'S-methylbutanoylproceranolide. The structures of these limonoids were established on the basis of spectroscopic data. The (13)C-NMR data of khayasin were reported for the first time. Khayasin was found to exhibit marked insecticidal activity against the fifth instar larvae of Brontispa longissima (GESTRO) at a concentration of 10 mg/l.
authors.affiliation: College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, China. zhing0701@sina.com
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.forename: Sheng-Xin
authors.initials: SX
authors.lastname: Yang
authors.forename: Xiao-Bo
authors.initials: XB
authors.lastname: Yang
authors.forename: Min-Yi
authors.initials: MY
authors.lastname: Li
authors.forename: Gang
authors.initials: G
authors.lastname: Feng
authors.forename: Jian-Yu
authors.initials: JY
authors.lastname: Pan
authors.forename: Tirumani
authors.initials: T
authors.lastname: Satyanandamurty
authors.forename: Jun
authors.initials: J
authors.lastname: Wu
mesh_terms: D000818:Animals; D001517:Coleoptera / Q000187:drug effects; D007306:Insecticides / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects; D036701:Limonins / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D009682:Magnetic Resonance Spectroscopy; D029582:Meliaceae / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D012639:Seeds / Q000737:chemistry*
chemical_list: D007306:Insecticides; D036701:Limonins