Compounds having psychostimulant, antispasmodic, hypotensive and analgesic properties are disclosed. The compounds have the formula: ##STR1## in which R.sup.2 is selected from the group consisting of a hydrogen atom and a halogen atom; R.sup.1 is selected from the group consisting of a cyclohexyl group and a phenyl group, and is a cyclohexyl group when R.sup.2 is a halogen atom; A is selected from the group consisting of CH.sub.2 CH.sub.2 and CH.dbd.CH groups; and Nr.sup.3 r.sup.4 is selected from the group consisting of an alkylamino group, a dialkylamino group and a heterocyclic ring containing from 5 to 7 atoms in the ring, said ring optionally having one or more sbustituents and optionally containing a second hetero-atom; and acid addition salts of said compounds.