Add time:07/11/2019         Source:sciencedirect.com

A novel series of 1-{[3-(furan-2-yl)-5-substituted phenyl-4,5-dihydro-1,2-oxazol-4-yl]methyl}-4-methyl piperazine, compounds 3a–l have been synthesized. The synthetic work was carried out beginning from 2-acetylfuran through Claisen Schmidt condensation with different types of aromatic aldehyde, affording 1-(furan-2-yl)-3-substitutedphenylprop-2-en-1-ones which on cyclization with hydroxylamine hydrochloride resulted in 3-(furan-2-yl)-5-substitutedphenyl-4,5-dihydro-1,2-oxazole formation. The isoxazolines were subjected to Mannich’s reaction in the presence of N-methyl piperazine to produce the desired product. The chemical structures of the compounds were proved by IR, 1H NMR, 13C-NMR and Mass spectrometric data. The antidepressant activities of the compounds were investigated by Porsolt’s behavioral despair (forced swimming) test on albino mice. Moreover, the antianxiety activity of the newly synthesized compounds was investigated by the plus maze method. Compounds 3a and 3k reduced the duration of immobility times of 152.00–152.33% at 10 mg/kg dose level and compounds 3a and 3k have also shown significant antianxiety activity.

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