chevalone c

Chevalone C is a meroterpenoid fungal metabolite originally isolated from E. chevalieri. It is active against M. tuberculosis H37Ra (MIC = 6.3 μg/ml) and is cytotoxic to BC1 human breast cancer cells (IC50 = 8.7 μg/ml). Chevalone C inhibits the growth of multidrug-resistant isolates of E. coli, S. aureus, and E. faecium in a disc diffusion assay when used at a concentration of 15 μg/disc. It also induces cell death in HCT116 colorectal carcinoma cells.

Sartorypyrone B, a 2β-acetoxyl analogue of chevalone C, is derived from the ethyl acetate extract of the culture of Neosartorya tsunodae (KUFC 9213), a fungus associated with marine sponges. This compound demonstrates potent growth inhibitory activity against MCF-7, NCI-H460, and A375-C5 cancer cell lines with GI50 values of 17.8, 20.5, and 25.0 μM, respectively, indicating its potential in the study of breast adenocarcinoma, non-small cell lung cancer, and melanoma [1].