Objective To study the metabolites from the strain of the fungus Leptosphaeria sp. L1201 which was isolated from healthy tissues of the plant Casearia balansae( Flacourtiaceae). Methods The compounds were isolated by different chromatographic methods,including silica gel and Sephadex LH-20 column chromatography as well as high performance liquid chromatography,and the structures of the compounds were determined on the basis of extensive spectroscopic techniques including HRMS,1 D and 2 D NMR experiments and...