A Novel Carbon Skeletal Trichothecane, Tenuipesine A, Isolated from an Entomopathogenic Fungus, <i>Paecilomyces </i><i>t</i><i>enuipes</i>
作者:Haruhisa Kikuchi、Yasuhiro Miyagawa、Koji Nakamura、Yuko Sahashi、Satoshi Inatomi、Yoshiteru Oshima
DOI:10.1021/ol048141j
日期:2004.11.1
Tenuipesine A (1), a novel trichothecane with an unprecedented carbon-migrated skeleton that embodies of a cyclopropane ring, was isolated from cultivated fruiting bodies of Paecilomyces tenuipes (Isaria japonica), a popular e ntomo pathogenic fungi employed in folk medicine and health foods in China, Korea, and Japan. The structure was determined on the basis of two-dimensional NMR data. Its stereochemistry was elucidated by spectroscopic data and the chemical transformation of the coexisting trichothecene, 4beta-acetoxy-12,13-epoxytrichothec-g-ene3cc,15-diol (2).