Abstract
To study the secondary metabolites and their cytotoxic activities of an endophytic fungus Diaporthe sp. XZ-07cultivated on Camptotheca acuminata. Colum chromatography by RP-18, Sephadex LH-20 and silica gel was used to isolate and purify the chemical constituent. Two new compounds were isolatedand identified as 5-((E)-1,4,5-trihydroxyhex-2-enyl)furan-2(5H)-one(1)and(5Z)-5-(2,3,4,5-tetrahydroxyhexylidene)furan-2(5H)-one(2)by spectroscopic analysis. Cytotoxic activities were evaluated by MTT method. Compound 1 showed strong inhibitory activity against Human cervical carcinoma cell line Hela, and compound 2 showed strong inhibitory activity against breast cancer cell line MCF-7, Human neuroblastoma SH-SY5Y and Lewis lung carcinoma cells 3LL.
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