[1,6-Disubstituted 3-methylquinoxalin-2(1H)-ones. Effect on acquisition and modification of a conditioned avoidance...

Sixteen derivatives of 3-methylquinoxalin-2(1H)-one were prepared; they are variously substituted on position 6 (R = H, COCH3, OCH3, CF3) and bear on position 1 an aminoalkyl chain (dimethylaminoethyl, dimethylaminopropyl, N-methylpiperazinylpropyl and morpholinylethyl). Most of these compounds exhibit a high degree of deconditioning activity on rats; compound (X) is significantly more active than chlorpromazine in the tests used.