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The reactions of 4-[(1-oxo-3,4-dihydro-2H-naphmalen-2-ylidene)methyl]benzoic acid with 3-(1,3-dioxobutane-1-yl)-2H-chromen-2-one in the presence of nitrogenous bases (piperidine, triethylamine or pyridine) were used to synthesize for the first time hybrid systems containing the pharmacophoric fragments of the reagents. The reaction scheme involves formation of a condensed dihydropyran structure and...
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