asperlicin [ (S-(2alpha,9beta,9(R*),9alpha,beta))-6,7-dihydro-7-((2,3,9,9a-tetrahydro-9-hydroxy-2-(2-methylpropyl)-3-oxo-1H-imidazo(1,2-a)indol-9-yl)methyl)quinazolino(3,2-a)(1,4)benzodiazepine-5,13-dione ] cholecystokinin antagonist; isolated from Aspergillus alliaceus; structure given in first source