| abstract |
This invention concerns the compounds of formula (I), the pharmaceutically acceptable salts and stereoisomeric forms thereof, and also the N-oxide forms thereof. In formula (I) R1 and R2 each independently are hydrogen; C1-6alkyl; C1-6alkylcarbonyl; trihalomethylcarbonyl; C1-6alkyl substituted with hydroxy, C1-6alkyloxy, carboxyl, C1-6alkylcarbonyloxy, C1-6alkyloxycarbonyl or aryl; or R1 and R2 taken together with the nitrogen atom to which they are attached may form a morpholinyl ring or an optionally substitued heterocycle; R3, R4, R5, R6, R9, R10, R11 or R12 each independently are hydrogen, halo, cyano, hydroxy, trifluoromethyl, trifluoromethoxy, carboxyl, nitro, amino, mono- or di(C1-6alkyl)-amino, C1-6alkylcarbonylamino, aminosulfonyl, mono- or di(C1-6alkyl)-aminosulfonyl, C1-6alkyl, C1-6alkyloxy, C1-6alkylcarbonyl, C1-6alkyloxy-carbonyl; R7 and R8 are each independently hydrogen, hydroxy, C1-6alkyl, C1-6alkyloxy or R7 and R8 taken together may form mono- or di(cyano)methylene, or together with the carbon atom to which they are attached form a carbonyl or a spiro substituent; or R7 and R8 taken together may form methylene; R13 is hydrogen, C1-6alkyl, or trifluoromethyl; R14 is hydrogen, C1-6alkyl, cyano, or trifluoromethyl; n is zero to 6. These compounds were tested as mCPP-antagonists in rats. The compounds of formula (I) may be used as therapeutic agents in the treatment or the prevention of CNS disorders, cardiovascular disorders or gastrointestinal disorders. |