Okaramine G, a New Okaramine Congener fromPenicillium simplicissimumATCC 90288

Abstract
Okaramine G (1), a new okaramine congener, was isolated from Penicillium simplicissimum ATCC 90288. The structure of 1 was determined by a spectroscopic investigation. Okaramine G exhibited insecticidal activity against silkworms.