2-4-(2,3-dihydro-2-oxo-1h-benzimidazol-1-yl)-1- piperidinyl or 1,2,3,6-tetrahydro-1- pyridinyl))alkyl-1h-benzdeisoquinoline-1, 3(2h)-diones

Abstract From the Canadian patent

New compounds which exhibit antidepressant activity and are also useful as antiinflammatory agents have, the following formula, wherein R1 and R2 are independently selected from hydrogen halogen, lower alkyl, lower alkoxy, lower alkylthio nitro, amino, trifluoromethyl and cyano: R3 is hydrogen or lower alky; R4 and R5 are independently selected from hydrogen lower alkyl, lower alkoxy and halogen; A is straight or branched chain alkylene of 1 to 8 carbons; the dashed line indicates the optional presence of a double bond; and a pharmaceutically acceptable acid addition salt thereof.