NOVEL CHOLECYSTOKININ ANTAGONISTS FROM ASPERGILLUS ALLIACEUS

II. STRUCTURE DETERMINATION OF ASPERLICINS B, C, D, AND E

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Asperlicins B (1, C₃₁H₂₉N₅O₅), C (2, C₂₅H₁₈N₄O₂), D (3, C₂₅H₁₈N₄O₂), and E (4, C₂₅H₁₈N₄O₃) are novel cholecystokinin antagonists produced by Aspergillus alliaceus. The structures of these compounds have been determined by ¹H NMR and MS analysis.