title: New p-terphenyls from the endophytic fungus Aspergillus sp. YXf3.
abstract: Five new p-terphenyls named prenylterphenyllin D (1), prenylterphenyllin E (2), 2'-O-methylprenylterphenyllin (3), 4-O-methylprenylterphenyllin (4) and 3'-O-methylterphenyllin (5) together with seven known compounds (6-12), were isolated from cultures of Aspergillus sp. YXf3. The structures of the new compounds were elucidated by extensive MS and NMR analyses. The NMR and MS data of 5 is reported for the first time, as its structure was listed in SciFinder Scholar with no associated reference. Compounds 6 and 7 were distinguished from each other on the basis of 2D NMR experiments. Compounds 1, 2, 3 and 8 showed antibacterial activities against X. oryzae pv. oryzicola Swings and E. amylovora with the same MIC values of 20μg/mL while 10 exhibited activities against E. amylovora with an MIC value of 10μg/mL.
authors.affiliation: College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing 210095, PR China.
authors.forename: Wei
authors.initials: W
authors.lastname: Yan
authors.affiliation: Department of Science, Hetao College, Bayannur 015000, PR China.
authors.lastname: Wuringege
authors.affiliation: Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, PR China.
authors.forename: Sui-Jun
authors.initials: SJ
authors.lastname: Li
authors.affiliation: Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, PR China.
authors.forename: Zhi-Kai
authors.initials: ZK
authors.lastname: Guo
authors.affiliation: Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, PR China.
authors.forename: Wen-Jing
authors.initials: WJ
authors.lastname: Zhang
authors.affiliation: Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, PR China.
authors.forename: Wei
authors.initials: W
authors.lastname: Wei
authors.affiliation: Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, PR China.
authors.forename: Ren-Xiang
authors.initials: RX
authors.lastname: Tan
authors.affiliation: Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210023, PR China. Electronic address: rhjiao@nju.edu.cn.
authors.forename: Rui-Hua
authors.initials: RH
authors.lastname: Jiao
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D001230:Aspergillus / Q000737:chemistry*; D004305:Dose-Response Relationship, Drug; D044084:Erwinia amylovora / Q000187:drug effects*; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D013329:Structure-Activity Relationship; D013730:Terphenyl Compounds / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D014974:Xanthomonas / Q000187:drug effects*
chemical_list: D000900:Anti-Bacterial Agents; D013730:Terphenyl Compounds
keywords: Anti-phytopathogenic activity; Aspergillus sp.; p-Terphenyls