| abstract |
This subject invention relates to dimeric 4-phenylpiperidine, 4-phenyl-1,2,3,6-tetrahydropyridine, or 4-phenylpiperazine compounds or dimeric spirocyclic piperidine compounds having general formula (1), <IMAGE> +TR <IMAGE> wherein n is 1-5; R1 to R4 are substituents; R5 and R6 each hydrogen or alkyl or form together an ethylene or propylene bridge; X is O, S, SO, SO2, CO or (CH2)m, m being 0 or 1, X is NR7, R7 being H, alkyl, cycloalkyl, cycloalkylalkyl, phenyl, or phenylalklyl, or X is CR8-R9, wherein R8 and R9 are selected from hydroxy and the substituents defined under R7; and (i) Z1 is a substituent and Z2 is (CH2)p wherein p is 0; and Y is N, C or CH; (ii) Z1 and Y are linked together via a single bond, thereby forming a spirocyclic junction; in which case Y is C; Z1 is O, S, (CH2)q, q being 1, 2 or 3, or Z1 is CH2O, CH2S, CH2CH2O, CH2CH2S, CH=CH, CH=CHCH2, CH2OCH2, CH2SCH2, CH=CH-O, or CH=CH-S; and Z2 is O, S or (CH2)p, p being 0 or 1; are potent sigma receptor ligands thus being useful as drugs for the treatment of anxiety, psychosis, epilepsy, convulsion, movement disorders, motor disturbances, amnesia, cerebrovascular diseases, senile demential of the Alzheimer tpe or Parkinson's disease. |