Tricycloalternarene derivatives produced by an endophyte alternaria alternata isolated from Maytenus hookeri.
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).
Qiao
Li-Rui
LR
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.
Yuan
Lin
L
Gao
Jin-Ming
JM
Zhao
Pei-Ji
PJ
Kang
Qian-Jin
QJ
Shen
Yue-Mao
YM
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
C050233:altertoxin I; D010569:Perylene; C120102:alterperylenol