Pharmacologic activity of 1-lupinylquinoxalin-2(1H)-ones, 3,6-disubstituted

Five 1-lupinyl-3R'-6R"-quinoxalin-2(1H)-ones were tested in mice for acute toxicity, explorative activity inhibition, analgesic activity and for antagonism against physostigmine, strychnine and pentylentetrazol (cardiazol). As reference compounds were used chloropromazine, morphine, atropine and diazepam respectively. All tested compounds inhibit the explorative activity and exhibit high analgesic activity. Compound (I) protects completely the animals from physostigmine toxicity, while compound (IV) antagonizes, although only slightly, all the toxicants tested.