Aspergillin PZ, a novel isoindole-alkaloid from Aspergillus awamori

Aspergillin PZ was obtained from the fermentation of Aspergillus awamori (Nakazawa) by activity-guided fractionation and purification. Its structure was elucidated on the basis of spectral data, especially by 2D NMR, and finally confirmed by an X-ray analysis. It could induce conidia of P. oryzae to deform moderately.