Abstract: Novel therapeutically active compounds of the formula ##STR1## wherein Z.sup.i, being Z.sup.1, Z.sup.2 or Z.sup.3, is the same or different and selected among OH, OR.sup.1, NH.sub.2, NR.sub.2.sup.4, NHR.sup.4, SH, SR.sup.4 and OR.sup.4 wherein R.sup.1 is a formyl group, an acyl group, an alkoxycarbonyl group or a mono- or dialkylcarbamoyl group and R.sup.4 is a lower alkyl group,R.sup.2 is a hydrogen, a halogen, a lower alkyl or a lower trifluoroalkyl group,R.sup.3 is a hydrogen atom, a lower alkyl group, an alkenyl group, an alkynyl group or a phenyl group, which phenyl group could optionally be substituted by one or more of fluoro, chloro, bromo, trifluoromethyl, methyl, ethyl, methoxy or ethoxy in the ortho, meta or para positions, or optionally substituted by methylenedioxy, provided that at least one of Z.sup.1, Z.sup.2 and Z.sup.3 is a group OR.sup.4 and further provided that when Z.sup.2 is OH or NH.sub.2, Z.sup.1 is NR.sub.2.sup.4, NHR.sup.4, SH, SR.sup.4 or OR.sup.

Abstract: Compounds having antipsychotic activity, characterized by the formula ##STR1## in which formula R.sub.o and R.sub.1 are the same or different and are each selected from hydrogen, halogen, alkyl having 1, 2 or 3 carbon atoms, alkoxy having 1, 2 or 3 carbon atoms, and trifluoromethyl, and R.sub.2 is selected from hydrogen, halogen, alkyl having 1, 2 or 3 carbon atoms, alkoxy having 1, 2 or 3 carbon atoms, and trifluoromethyl, pharmaceutical compositions containing them, and a method for the treatment of psychoses.