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为Chevalone C的2β-乙酰氧基衍生物，由海绵源真菌Neosartorya tsunodae(KUFC 9213)的培养物中乙酸乙酯提取得到。该化合物对MCF-7、NCI-H460和A375-C5细胞系展示出较强的生长抑制活性，GI50s值分别为17.8、20.5和25.0 μM，显示其在乳腺癌、非小细胞肺癌和黑色素瘤研究中的应用潜力。