The formation of an ent-6α,7α-epoxykaurene of possible biosynthetic significance by Gibberella fujikuroi
Abstract
Whereas ent-kaur-6,16-diene affords 7-hydroxykaurenolide and ent-18-hydroxykaur-6,16-diene affords 7,18-dihydroxykaurenolide on incubation with Gibberella fujikuroi, ent-6α,7α-epoxy-3β,18-dihydroxykaur-16-ene, the structure of which was determined by X-ray crystallography was obtained from ent3β,18-dihydroxykaur-6,16-diene.