Structures of cochlioquinones A and B, new metabolites of Cochliobolus miyabeanus: chemical and X-ray crystallographic determination

Abstract

The structures of cochlioquinones A and B, new metabolites isolated from a strain of Cochliobolus miyabeanus, have been determined from chemical, spectroscopic, and crystallographic evidence, the main feature being a p-benzoquinone ring linked to a sesquiterpene moiety and to a C7 side-chain.