Cultivation of Chaetomium mollipilium with nicotinamide, a NAD +-dependent HDAC inhibitor, stimulated its secondary metabolism, leading to the isolation of structurally diverse new C13-polyketides, mollipilin A-E (1-5) as well as two known compounds (6 and 7). Spectroscopic methods, X-ray single crystal diffraction analysis, and VCD elucidated the absolute configurations of structures 1-6, and plausible biosynthetic pathways for 1-7 were proposed based on structural relationships. Mollipilins A (1) and B (2) exhibited moderate growth inhibitory effects on HCT-116 cells.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry