Studies on the Metabolic Products of Oospora sp.

Part II. Chemical Structure of Oospolactone (O-1)

Abstract

A new compound O-1 which was isolated from the mycellium of Oospora sp. was named oospolactone according to the existence of lactone ring. The chemical structure of this compound was studied, and as the result, it was determined as (I). This structure is closely similar to that of mellein (ochracin).