Abstract
Two new quinone type compounds, variecolorquinones A (1) and B (2) together with eleven known related compounds 3 approximately 13 have been isolated from the metabolites produced by the halotolerant fungal strain Aspergillus variecolor B-17. The structures of 1 and 2 were determined by spectroscopic methods. 1 exhibited selective cytotoxicity against A-549 cells with the IC50 values of 3.0 microM. 2 showed cytotoxicity against HL60 and P388 cells with the IC50 values of 1.3 and 3.7 microM, respectively.
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