abstract |
There are disclosed various compounds of the formula below, <CHEM> where X is hydrogen, halogen or loweralkyl; Y is hydrogen, halogen, loweralkyl, loweralkoxy or trifluoromethyl; R1 is hydrogen, loweralkyl, aryl, arylloweralkyl, diloweralkylaminoloweralkyl or <CHEM> R3 being hydrogen, loweralkyl or arylloweralkyl; and R2 is hydrogen, loweralkyl or arylloweralkyl; which compounds are useful as analgesic agents, and a process for their preparation. |