The invention relates to novel 5,6,7,8-tetrahydroquinoline derivatives which have a group X situated at the 8-position said group X is CONHR.sup.3, or CO.sub.2 R.sup.5 wherein R.sup.3 is hydrogen lower alkyl and R.sup.5 is hydrogen, lower alkyl or a lower aralkyl radical. The compounds are intermediates for corresponding compounds where X is CSNHR.sup.3 and these are anti-ulcer agents.
The invention relates to novel 8-cyano-5,6,7,8-tetrahydroquinoline derivatives which are intermediates for the preparation of corresponding 8-thioamides. Some of the 8-cyano compounds are anti-ulcer agents.
The invention relates to novel cyclopenteno[b]pyridine derivatives which have a group X on the 7-position and related tricyclic compounds. X is CONHR.sup.3, or CO.sub.2 R.sup.5 wherein R.sup.3 is hydrogen or lower alkyl and R.sup.5 is hydrogen or a lower alkyl or lower aralkyl group which may be substituted by alkyl, alkoxy, halogen, nitro or trifluoromethyl; other substituents may be present. The compounds are intermediates for compounds wherein X is CSNHR.sup.3 which are anti-ulcer agents.
The invention relates to pharmaceutical compositions containing 5,6,7,8-tetrahydroquinoline-8-thioamides and nitriles and related tricyclic compounds and methods of treating ulcers using said compounds.
The invention relates to novel cyclopentena[b,e]pyridine derivatives which have a thioamide group in the 7-position. The compounds are anti-ulcer agents.