Microbial Transformation of Sesquiterpene Lactones by the Fungi <i>Cunninghamella echinulata</i> and <i>Rhizopus oryzae</i>
作者:Alejandro F. Barrero、J. Enrique Oltra、Délio S. Raslan、Dênia A. Saúde
DOI:10.1021/np980520w
日期:1999.5.1
13-dihydrodehydrocostuslactone (12), a new natural product. R. oryzae converted 4 into both Delta11(13)-dihydrogenation and Delta10(14)-epoxidation products (16 and 17). Both fungi transformed 5 into (-)-16-(1-methyl-1-propenyl)eremantholanolide (13), providing experimental evidence for the biosynthesis of the eremantholide hemiketal unit. Compounds 3 and 6 were not metabolized by either fungus under the test conditions