title: Tricycloalternarene derivatives produced by an endophyte alternaria alternata isolated from Maytenus hookeri.
abstract: A new tricycloalternarene derivative, named tricycloalternarenal (1), together with three known compounds was isolated from the cultures of Alternaria alternata, an endophytic fungus in the leaves of the plant Maytenus hooker! (Celastraceae). Structure of 1 was established as (2E)-6-(3, 3a, 5, 6, 7, 8, 9, 9a-octahydro-5-hydroxy-3a-methyl-8-oxo-cyclo-penta[b]chromen-1-yl)-2-methylhept-2-enal by spectroscopic methods, including 2D-NMR experiments. The remaining compounds were determined as tricycloalternarene-3b (2), alterperylenol (3), and dihydroalterperylenol (4).
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, The Chinese Academy of Sciences, Kunming 650204, Yunnan, P.R. China.
authors.forename: Li-Rui
authors.initials: LR
authors.lastname: Qiao
authors.forename: Lin
authors.initials: L
authors.lastname: Yuan
authors.forename: Jin-Ming
authors.initials: JM
authors.lastname: Gao
authors.forename: Pei-Ji
authors.initials: PJ
authors.lastname: Zhao
authors.forename: Qian-Jin
authors.initials: QJ
authors.lastname: Kang
authors.forename: Yue-Mao
authors.initials: YM
authors.lastname: Shen
mesh_terms: D000528:Alternaria / Q000302:isolation & purification / Q000378:metabolism*; D029755:Maytenus / Q000382:microbiology*; D015394:Molecular Structure; D010569:Perylene / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism; D018515:Plant Leaves / Q000382:microbiology
chemical_list: C050233:altertoxin I; D010569:Perylene; C120102:alterperylenol