Cytotoxic and antibacterial depsidones from the endophytic fungus isolated from Thai rice.

Four new depsidones, mollicellins V-Y (-), together with eight known depsidones (-) were isolated from the endophytic fungus, detached from stems of Thai rice. Their structures were determined by extensive spectroscopic methods. Mollicellins X, H, and F (, and ) showed potent cytotoxicity against the human oral epidermoid carcinoma (KB) cell line, and mollicellin F () also showed a potent cytotoxicity against the human hepatocellular carcinoma (HepG2) cell line.