| abstract |
A 3-benzazocine compound of the formula: ##SPC1## n Wherein R 1 , R 3 , R 4 , R 5 and R 8 are each hydrogen or lower alkyl, R 2 is hydrogen, lower alkyl or phenyl and R 6 and R 7 are each lower alkyl, and its pharmaceutically acceptable acid addition salts, which are useful as analgesics and can be produced by reacting a tetrahydropyridine compound of the formula: ##SPC2## n Wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are each as defined above or its salt with a Lewis acid. |