Primmala Khumkomkhet, S. Kanokmedhakul, K. Kanokmedhakul
Aug 7, 2009
Citations
3
Influential Citations
54
Citations
Quality indicators
Journal
Journal of natural products
Abstract
Four new depsidones, mollicellins K-N (1-4), and six known depsidones, mollicellins B (5), C (6), E (7), F (8), H (9), and J (10), along with two known sterols were isolated from the fungus Chaetomium brasiliense. Their structures were elucidated on the basis of 1D and 2D NMR spectroscopic data and chemical transformation. Among these isolates, 1-3, 5-7, and 10 exhibited antimalarial activity against Plasmodium falciparum. Only 1 exhibited antimycobacterial activity against Mycobacterium tuberculosis and antifungal activity against Candida albicans using in vitro assays. In addition, 1-10 showed cytotoxicity against the KB, BC1, NCI-H187, and five cholangiocarcinoma cell lines.