Roussel Uclaf

Peter A Robson

Alan C Barnes

Novel imidazo[1,2-a]quinolines of the formula ##STR1## wherein R is selected from the group consisting of alkyl of 1 to 8 carbon atoms, thienyl, pyridyl and phenyl optionally substituted with at least one member of the group consisting of halogen, alkyl of 1 to 5 carbon atoms and alkoxy of 1 to 5 carbon atoms, R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen, halogen, alkyl and alkoxy of 1 to 8 carbon atoms,s cyclohexyl, --NO.sub.2 and phenoxy, R.sub.3 is selected from the group consisting of alkoxy and alkylthio of 1 to 8 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having a remarkable anxiolytic activity and a hypnotic activity and their preparation.

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Upper Stratton, United Kingdom

Peter A Robson