[3,6-disubstituted 1-lupinylquinoxalin-2(1H)-ones of pharmacological interest. Effect on acquisition and modification of a conditioned avoidance response in rats].

Fifteen N-lupinyl derivatives of 3-methyl-, 3-phenyl- and 3-benzylquinoxalin-2(1H)-one, variously substituted on position 6 (R = CH3O, CH3, Cl, CF3), were prepared. Of these, all 1-lupinyl-3-methylquinoxalin-2-ones exhibit a high degree of deconditioning activity in the tests of acquisition and modification of a conditioned avoidance response (C.A.R.) in rats. In both tests, compounds (II) and (IV), with R = CH3O and Cl respectively, proved more active than chloropromazine.