BMS-192548, a tetracyclic binding inhibitor of neuropeptide Y receptors, from Aspergillus niger WB2346. II. Physico-chemical properties and structural characterization.

The structure of BMS-192548, a tetracyclic binding inhibitor of neuropeptide Y receptors, was established by spectroscopic methods. The compound has an unusual B-C-D ring beta-diketone moiety.