Four New Metabolites Produced by Penicillium Citreo-viride B. on Addition of NaBr

Abstract Four new metabolites (citreobiphenyl, precitreobiphenyl, citreoviranol, and demethylcitreoviranol) have been isolated from the mycelium of Penicillium citreo-viride B. (IFO 4692) incubated on the polished rice together with sodium bromide, and their structures have also been elucidated on the basis of their spectral data.