disclosed are compounds of the formula str1 where s and v are various organic or inorganic substituents g and k are the same or different and represent n or cr 39 where r 39 is an organic or inorganic substituent r is hydrogen or an alkyl group r 1 x y z and t are organic or inorganic substituents and r 2 and r 3 represent hydrogen or organic substituents or nr 2 r 3 together represents a heterocyclic ring system and the pharmaceutically acceptable salts thereof which are highly selective partial agonists or antagonists at brain dopamine receptor subtypes and thus are useful in the diagnosis and treatment of affective disorders such as schizophrenia and depression as well as certain movement disorders such as parkinsonism application_number US 34449794 A description in addition to compounds of general formula i described above the present invention further encompasses compounds of formula ii str5 where r 1 x y z and t represent hydrogen or alkyl r 7 and r 8 independently represent hydrogen or alkoxy r 9 is hydrogen or alkyl and w represents nitrogen or ch preferred compounds of formula i include those where w is n or ch and r 7 is phenyl pyridyl or pyrimidinyl each of which is optionally mono or disubstituted with halogen hydroxy straight or branched chain lower alkyl having 1 6 carbon atoms or straight or branched chain lower alkoxy having 1 6 carbon atoms preferred compounds according to formula ii are those where r 1 x y z and t are hydrogen r 7 and r 8 are different and represent hydrogen or alkoxy w is ch and ar represents benzyl or phenyl other preferred compounds of formula ii are.