Broad-spectrum antifungal activities and mechanism of drimane sesquiterpenoids
Edruce Edouarzin, Connor Horn, Anuja Paudyal, Cunli Zhang, Jianyu Lu, Zongbo Tong, Guri Giaever, Corey Nislow, Raja Veerapandian, Duy H. Hua, Govindsamy Vediyappan
Abstract
Broad-spectrum antifungal activities and mechanism of drimane sesquiterpenoids – Eight drimane sesquiterpenoids including (-)-drimenol and (+)-albicanol were synthesized from (+)-sclareolide and evaluated for their antifungal activities. Three compounds, (-)-drimenol, (+)-albicanol, and (1R,2R,4aS,8aS)-2-hydroxy-2,5,5,8a-tetramethyl-decahydronaphthalene-1-carbaldehyde (4) showed strong activity against C. albicans. (-)-Drimenol, the strongest inhibitor of the three, (at concentrations of 8 – 64 µg/ml, causing 100% death of various fungi), acts not only against C. albicans in a fungicidal manner, but also inhibits other fungi such as Aspergillus, Cryptococcus, Pneumocystis, (...)