4-Hydroxy-2-quinolones. 195*. Synthesis of novel, potential analgesics based on 4-(hetarylmethyl)amino-2-oxo-1,2-dihydro-quinoline-3-carboxylic acids
摘要:
From the viewpoint of the method of bioisosteric replacement we have carried out the synthesis of a series of 4-(hetarylmethyl)amino-2-oxo-1,2-dihydroquinoline-3-carboxylic acids. For several examples it has been shown experimentally that the aromatic ring in the benzyl fragment of 4-benzylamino-2-oxo-1,2-dihydroquinoline-3-carboxylic acid can be replaced by an isosteric heterocycle without lowering the analgesic properties.