Piperidine ring modified phencyclidine analogs as anticonvulsants

Abstract From the Canadian patent

Compounds of the formula wherein R1, and R2 are selected from the group consisting of hydrogen, lower alkyl, and lower alkylene and R1 and R2 together with nitrogen can form a ring having from three to seven members; R3 and R4 are selected from the group consisting of hydrogen lower, alkyl, lower alkylene, hydroxy, methoxy amino, alkylamino, thio, thioalkyl, and halogen; ring A has from 5 to 8 carbon atoms; and pharmaceutically acceptable salts thereof, are useful as anticonvulsant agents for treating epilepsy.