Three new phomalone derivatives from a deep-sea-derived fungus Alternaria sp. MCCC 3A00467
Tian-Hua Zhong1, Xian-Ming Zeng1,2, Shi-Biao Feng2
1Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, P.R. China.
Abstract:
Three new phomalone derivatives, phomalichenones E-G (1-3), and seven known analogues (4-10) were isolated from the cultures of a deep-sea-derived fungus Alternaria sp. MCCC 3A00467. Their structures were elucidated by spectroscopic methods, including the 1D and 2D NMR, and ECD spectrum. Among the compounds isolated, phomalichenone F (2) presented cytotoxic activity against human myeloma cancer U266 cells with IC50 value of 24.99 μg/mL. The most active compound, 10, showed cytotoxicity against U266, HepG2 and A549 cells with IC50 values of 13.26, 14.69 and 24.39 μg/mL, respectively.
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Fungal Phylum Ascomycota
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