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Flavoprotein monoamine oxidase is located on the outer membrane ofmitochondria. It catalyzes oxidative deamination of monoamine neurotransmitters such asserotonin, norepinephrine and dopamine and hence is a target enzyme for antidepressantdrugs. MAO (mono amine oxidase) has two isoforms, namely MAO-A and MAO-B.MAO-A isoform has higher affinity for serotonin and norepinephrine, while; MAO-Bpreferentially deaminates phenylethylamine and benzylamine. These important propertiesdetermine the clinical importance of MAO inhibitors. Selective MAO-A inhibitors are usedin the treatment of neurological disorders such as depression. In this article we havedeveloped a Hypogen pharmacophore for a set of 64 coumarin analogs and tried to analyzethe intermolecular H-bonds with receptor structure.