4-diphenylmethane-4-diphenylmethylene and 4-diphenylmethanol-piperidine derivatives

Abstract From the Canadian patent

Compounds of the following general formula are useful as antihistamine agents antiallergy agnets and bronchodilators:, wherein R represents hydrogen or hydroxy; R1 represents hydrogen; or R and R1 taken together form a second bond between the carbon atoms bearing R and R1; n is the integer 4 or 5; Y represents -?-, or , ; Z represents phenyl or a substituted phenyl eing wherein the substituent on the substituted phenyl ring is attached at the ortho meta, or para position of the phenyl ring and is selected from halogen, a straight or branched alkyl group of from 1 to 6 carbon atoms, alkoxy of from 1 to 6 carbon atoms cycloalkyl of from 3 to 6 carbon atoms di(lower)alkylamino, or a saturated …