New Insecticidal Compounds, Communesins C, D and E, fromPenicillium expansumLink MK-57

Abstract
Three new communesin congeners, communesins C, D, and E, together with two known communesins A and B were isolated from okara that had been fermented with Penicillium expansum Link MK-57. All these communesins showed the insecticidal activity against the silkworms.