Asperlicin, a novel non-peptidal cholecystokinin antagonist from Aspergillus alliaceus. Structure elucidation.

Abstract
Asperlicin (1, C31H29N5O4) is a novel cholecystokinin antagonist produced by Aspergillus alliaceus. The structure of asperlicin has been determined by NMR and mass spectral analysis, and X-ray crystallography.