Utilization of derivatives of tetrahydropyridines(or 4-hydroxypiperidines)-butylazols in the preparation of a medicament for the treatment of pain

Abstract

Derivatives of tetrahydropyridines (or 4-hydroxypiperidines)-butylazols of formula (I), wherein R 1 , R 2 and R 3 , which are similar or different, represent each of them hydrogen, halogen, alkyl C 1 -C 4 , trifluoromethyl, hydroxyl, alkoxyl, or two adjacent radicals can form a ring; A is a C atom and the dotted line represents an additional bond, or A is a C atom joined to a hydroxyl group and the dotted line represents absence of additional bond; Z 1 is N or CR4; Z 2 is N or CR 5 ; Z 4 is N or CR 7 ; and R 4 , R 5 , R 6 and R 7 , which different, represent hydrogen, halogen, alkyl C 3 -C 4 , aryl or substituted aryl, or two adjacent radicals can form part of another ring. These derivatives are useful for the treatment of acute pain, neuropathic pain or nociceptive pain in mammals, including human beings.

1. A method of treating acute pain, neuropathic pain or nociceptive pain in a mammal which comprises administering to a patient in need thereof an effective amount of a derivative of tetrahydropyridines of formula (II) 
                 
 
       wherein
 R 1 , R 2  and R 3  are identical or different and are selected from hydrogen, halogen, C 1 -C 4  alkyl group, trifluoroethyl radical, hydroxyl or alkoxyl radical; and two adjacent radicals can form part of a six-member aromatic ring;  
 A is selected from a carbon atom or a carbon atom bound to a hydroxyl group (C—OH); wherein when A is a carbon atom the dotted line (- - -) represents a bond, and when A is a carbon atom bound to a hydroxyl group (C—OH) the dotted line (- - -) represents no bond;  
 Z 1 , is a nitrogen atom or a substituted carbon atom represented by the formula C—R 4 ;  
 Z 2  is a nitrogen atom or a substituted carbon atom represented by the formula C—R 5 ;  
 Z 4  is a nitrogen atom or a substituted carbon atom represented by the formula C—R 7 ;  
 with the condition that Z 1 ; Z 2  and Z 4  taken together can represent, at most, two nitrogen atoms; and  
 R 4 , R 5 , R 6  and R 7 , are identical or different and are selected from hydrogen, halogen, C 1 -C 4  alkyl group, aryl or substituted aryl group, and two adjacent radicals can form part of a six-member aromatic ring;  
 or physiologically acceptable salts thereof.  
 
     
     
       2. The method as claimed in  claim 1 , wherein R 1 , R 2  and R 3  are selected from hydrogen, fluorine, chlorine, bromine, trifluoromethyl, hydroxyl, methoxyl, methyl, ethyl, propyl, isopropyl, sec-butyl and a tert-butyl radical. 
     
     
       3. The method as claimed in  claim 1 , wherein R 1 , R 2  and R 3  are selected so that two adjacent radicals can form part of a six-membered aromatic ring. 
     
     
       4. The method as claimed in  claim 1 , wherein R 4 , R 5 , R 6  and R7 are selected from hydrogen, fluorine, chlorine, bromine, trifluoromethyl, hydroxyl, methoxyl, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, unsubstituted phenyl, or a substituted phenyl wherein the substituent is selected front halogen atoms from fluorine, chlorine and bromine. 
     
     
       5. The method as claimed in  claim 1 , wherein R 4 , R 5 , R 6  and R 7  are selected so wt two adjacent radicals form part of a six-membered aromatic ring. 
     
     
       6. The method as claimed in  claim 1 , further comprising an analgesic used for the treatment of pain. 
     
     
       7. The method as claimed in  claim 1 , wherein the compound of formula (I) is selected from the group consisting of:
 4-chloro-1-[4-(4hydroxy-4-phenyl-1-piperidinyl)butyl]-1H-pyrazole;    4,5chloro-1-[4-(4-hydroxy-phenyl-1-piperidinyl)butyl]-2-ethyl-1H-imidazole;    1-[4-(4hydroxy[]phenyl-1-piperdinyl)butyl]-1H-benzimidazole;    1-[(4hydroxy-phenyl-1-piperdinyl)butyl]-1H-1,2,4-triazole;    4-chloro-1-{4-[4chlorophenyl)-4-hydroxy-1-piperidinyl]butyl}-1H-pyrazole;    4,5-dichloro-1-{4-[4-hydroxy-4-(chlorophenyl)-1-piperidinyl]butyl}-2-methyl-1H-imidazole;    4-chloro-1-{4-[4-hydroxy-4-(3-trifluoromethylphenyl)-1-piperidinyl]-butyl}-1H-pyrazole;    4,5-dichloro-1-{4-[4-hydroxy-4-(3-trifluoromethylphenyl)-1-piperidinyl]-butyl}-2H-imidazole;    4,5-dichloro-1-{4-[4-(4-fluorophenyl)-4-hydroxy-1-piperdinyl]butyl}-2H-methyl-1H-imidazole;    1-[4-(4-hydroxy-4-phenyl-1-piperidinyl)-butyl]-1H-indole 4,5-dichloro-1-{[4-hydroxy-(fluorophenyl)-4-hydroxy-1-piperidinyl]butyl}-2-methyl-1H-imidazole;    1-[4(4-hydroxy-4-phenyl-1-piperidinyl)butyl]-1H-indole 4,5-dichloro-1-{4-[4hydroxy 4-(4-methylphenyl)1-piperyl]-butyl}-2-methyl-1H-imidazolo;    1-[-4-(4-hydroxy-4-phenyl-1-piperidinyl)butyl]-1H-pyrazole;    1-[-4-(4-hydroxy-4-phenyl-1-piperidinyl)butyl]-1H-imidazole;    2-[-4-(4-hydroxy-4-phenyl-1-piperidinyl)butyl]-2H-imidazole;    4-chloro-1-{4-[4-hydroxy-4-(4-methylphenyl)-1-(piperidinyl)-butyl}-1H-pyrazole;    4-chloro-1-{4-[4-hydroxy-4-(4-methoxyphenyl)-1-(piperidinyl)]-butyl}-1H-pyrazole;    1-[4(4hydroxy-4-phenyl-1-piperidinyl)butyl]-2-phenyl-1H-imidazole 1-{4-[4-hydroxy-4-(4-methylphenyl-1-piperidinyl]butyl}-1H-benzimidazole;    4,5-diphenyl-1-[4-(4-hydroxy-4-phenyl-1-piperidinyl)butyl]-1H-imidazole    4-chloro-1-{4-[4-hydroxy-4-(1-naphthyl)-1-piperidinyl]butyl}-1H-pyrazole;    4-chloro-1-{4-[4-hydroxy4-(2-naphthyl-1-piperidinyl]-butyl}-1H-pyrazole;    4-chloro-1-{4-[4-phenyl-1-(1,2,3,6-tetrahydropyridinyl)]-butyl}-1H-pyrazole;    1-{4-[4phenyl-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-benzimidazole;    1-{4-[4phenyl-1(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-1,2,4-triazole;    4chloro-1-{4-[4-(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrazole;    4,5-dichloro-1-{4-[4-(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl-}-2-methyl-1H-imidazole;    4chloro-1-{4-[4-(3-trifuoromethylphenyl)-1-(1,2,3,6-tetrahydropyridinyl)]-butyl-}-1H-pyrazole;    4,5-dichloro-2-methyl-1-{4-[4-(3-trifluoromethylphenyl)-1-(1,2,3,6tetahydropyridinyl)]-butyl}-1H-imidazole;    4-chloro-1-{4-[4-(1-naphthyl)-1-(1,2,3,6-tetrahydropyridinyl]butyl}-1H-pyrazole;    4chloro-1-{4-[4-(2-naphtyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrazole;    1-{2-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]etil}-1H-benzimidazole;    1-{4-[4-(4-phenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-benzimidazole hydrochloride;    1-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-benzimidazole;    1-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-bencimidazole hydrochloride;    4,5-dichloro-2-methyl-1-{4-[4(3-trifluoromethylphenyl)-1-(1,2,3,6-tetrahydropyridinyl)]-butyl}-1H-imidazole-hydrochloride;    4-chloro-1-{4-[4-(4-fluorophenyl)-1-(1,2,3,6)-tetrahydropyridinyl)]butyl}-1H-pyrazole hydrochloride;    1-{4-[1-phenyl-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-imidazole hydrochloride;    4,5-dichloro-1-{4-[4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-2-methyl-1H-imidazole hydrochloride;    4-(chlorophenyl)-1-{4-[4-phenyl-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrazole hydrochloride;    4-(4-chlorophenyl)-1-{4-[4-phenyl-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrazole;    1-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-triazole hydrochloride;    1-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-triazole;    1-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-2-methyl-1H-benzimidazole;    1-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-imidazole;    2-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-2H-imidazole;    2-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-2H-benzotriazole hydrochloride;    2-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-2H-benzotriazole;    1-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-benzotriazole hydrochloride;    1-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-benzotriazole;    4chloro-1-{4-[4(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl]butyl}-1H-pyrazole hydrochloride;    1-{4-[4-(4-phenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrazole hydrochloride;    1-{4-[4-(4-phenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-triazole hydrochloride;    2-phenyl-1-{4-[-4-1-(1,2,3,6-tetrahydropyridinyl)]-butyl}-1H-imidazole hydrochloride;    1-{4-[4-(4-phenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrrole;    4-(4-chlorophenyl)-1-[4-(4hydroxy-4-phenyl-1-piperidinyl)butyl]1H-pyrazole;    1-{4-[4-(4-fluorophenyl)-4-hydroxy-1-piperidinyl]butyl}-1H-benzimidazole;    4-chloro-1-{4-[4-hydroxy-4-(3-trifluoromethylphenyl)-1-piperidinyl]butyl}-1H-pyrazole;    1-{4-[4-(4-fluorophenyl)-4-hydroxy-1-piperidinyl]butyl}-1H-imidazole;    2-{4-[4-(4-fluorophenyl)-4-hydroxy-1-piperidinyl]butyl}-2H-imidazole;    2-{4-[4-(4-fluorophenyl)-4-hydroxy-1-piperidinyl]butyl}-2H-benzotriazole;    1-{4-[4-(4-fluorophenyl)-4-hydroxy-1-piperidinyl]butyl}-1H-benzotriazole;    3-chloro-1-{4-[4-phenyl-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-imidazole;    3-chloro-1-{4-[4-phenyl-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-imidazole hydrochloride;    1-{4-[4-hydroxy-4-(4-fluorophenyl)-1-piperidinyl]butyl}-1H-triazole;    1-{4-[4-hydroxy-4-(4-chlorophenyl)-1-piperidinyl]butyl}-1H-triazole;    4,5-dichloro-1-{4-[4-(4-phenyl-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-imidazole hydrochloride;    1-{4-[4-(4-fluorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-triazole citrate;    1-{4-[4-(4-bromophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-triazole;    1-{4-[4-(4-bromophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-triazole hydrochloride;    1-{4-[4-(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-triazole;    1-{4-[4-(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-triazole hydrochloride;    2-phenyl-1-{4-[4-(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-imidazole;    2-phenyl-1-{4-[4-(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-imidazole hydrochloride;    2,5-dimethyl-1-{4-[4-(4-phenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrrole;    2,5-dimethyl-1-{4-[4-(4-phenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrrole hydrochloride;    2,5-dimethyl-1-{4-[4-(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrrole;    2,5-dimethyl-1-{4-[4-(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrrole hydrochloride;    1-{4-[4-(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrrole;    1-{4-[4-(4-chlorophenyl)-1-(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-pyrrole hydrochloride;    1-{4-[4-(4-chlorophenyl)-1-1(1,2,3,6-tetrahydropyridinyl)]butyl}-1H-trizole hydrochloride.    
     
     
       8. The method as claimed in  claim 1 , wherein the compound of formula  1  is selected from the group consisting of:
     4   - chloro -   1   -[   4   -(   4   - hydroxy -   4   - phenyl -   1   - piperidinyl ) butyl] -   1 H - pyrazole;          4 , 5   - dichloro -   1   -[   4   -(   4   - hydroxy -   4   - phenyl -   1   - piperidinyl ) butyl] -   2   - methyl -   1 H - imidazole;          1   -[   4   -(   4   - hydroxy -   4   - phenyl -   1   - piperdinyl ) butyl] -   1 H - benzimidazole;          1   -[   4   -(   4   - hydroxy -   4   - phenyl -   1   - piperdinyl ) butyl] -   1 H -   1 , 2 , 4   - triazole;          4   - chloro -   1   -{   4   -[   4   -(   4   - chlorophenyl )-   4   - hydroxy -   1   - piperdinyl]butyl} -   1 H - pyrazole;          4 , 5   - dichloro -   1   -{   4   -[   4   - hydroxy -   4   -(   4   - chlorophenyl )-   1   - piperdinyl]butyl} -   2   - methyl -   1 H - imidazole;          4   - chloro -   1   -{   4   -[   4   - hydroxy -   4   -(   3   - trifluoromethylphenyl )-   1   - piperdinyl] - butyl }-   1 H - pyrazole;          4 , 5   - dichloro -   1   -{   4   -[   4   - hydroxy -   4   -(   3   - trifluoromethylphenyl )-   1   - piperdinyl] - butyl} -   2   - methyl -   1 H - imidazole;          4 , 5   - dichloro -   1   -{   4   -[   4   -(   4   - fluorophenyl )-   4   - hydroxy -   1   - piperdinyl]butyl} -   2   - methyl -   1 H imidazole;          1   -[   4   -(   4   - hydroxy -   4   - phenyl -   1   - piperdinyl ) butyl] -   1 H - indole;          4 , 5   - dichloro -   1   -{   4   -[   4   - hydroxy -   4   -(   4   - methylphenyl )-   1   - piperyl]butyl} -   2   - methyl -   1 H imidazole;          1   - [ 4   -(   4   - hydroxy -   4   - phenyl -   1   - piperdinyl ) butyl] -   1 H - pyrazole;          1   - [ 4   -(   4   - hydroxy -   4   - phenyl -   1   - piperdinyl ) butyl] -   1 H - indazole;          2   - [ 4   -(   4   - hydroxy -   4   - phenyl -   1   - piperdinyl ) butyl] -   2 H - indazole;          4   - chloro -   1   -{   4   -[   4   - hydroxy -   4   -(   4   - methylphenyl )-   1   - piperdinyl] - butyl} -   1 H - pyrazole;          4   - chloro -   1   -{   4   -[   4   - hydroxy -   4   -(   4   - methoxyphenyl )-   1   - piperdinyl] - butyl} -   1 H - pyrazole;          1   - [ 4   -(   4   - hydroxy -   4   - phenyl -   1   - piperdinyl ) butyl] -   2   - phenyl -   1 H - imidazole;          1   - { 4   - [ 4   - hydroxy -   4   -(   4   - methylphenyl )-   1   - piperdinyl]butyl} -   1 H - benzimidazole;          4 , 5   - diphenyl -   1   - [ 4   -(   4   - hydroxy -   4   - phenyl -   1   - piperdinyl ) butyl] -   1 H - imidazole;          4   - chloro -   1   -{   4   -[   4   - hydroxy -   4   -(   1   - naphthyl )-   1   - piperidinyl]butyl} -   1 H - pyrazole;          4   - chloro -   1   -{   4   -[   4   - hydroxy -   4   -(   2   - naphthyl -   1   - piperidinyl]butyl} -   1 H - pyrazole;          4   - chloro -   1   - { 4   - [ 4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl} -   1 H - pyrazole;          1   - { 4   -[   4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - benzimidazole;          1   - { 4   -[   4   - phenyl -   1   (   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H -   1 , 2 , 4   - triazole;          4   - chloro -   1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) ]butyl} -   1 H - pyrazole;          4 , 5   - dichloro -   1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl -}-   2   - metyl -   1 H - imidazole;          4   - chloro -   1   -{   4   -[   4   -(   3   - trifuoromethylphenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl -}-   1 H - pyrazole;          4 , 5   - dichloro -   2   - methyl -   1   -{   4   -[   4   -(   3   - trifluoromethylphenyl )-   1   -(   1 , 2 , 3 , 6   - tetahydropyridinyl )]- butyl} -   1 H - imidazole;          4   - chloro -   1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]-   1 H - pyrazole;          4 , 5   - dichloro -   1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl} -   2   - methyl -   1 H - imidazole;          4 , 5   - dichloro -   1   -{   4   -[   4   -[ phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl} -   2   - methyl -   1 H - imidazole;          4 , 5   - dichloro -   1   -{   4   -[   4   -[ phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl} -   2   - methyl -   1 H - imidazole hydrochloride;          4 , 5   - dichloro -   1   -{   4   -[   4   -[ phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl} -   2   - methyl -   1 H - imidazole dihydrochloride;          1   - { 4   - [ 4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) butyl} -   1 H - indole;          1   - { 4   - [ 4   -(   4   - phenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) butyl} -   1 H - indole;          4 , 5   - dichloro -   2   - methyl -   1   - { 4   -[   4   -(   4   - methylphenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - imidazole;          1   - { 4   - [ 4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) butyl} -   1 H - pyrazole;          1   - { 4   - [ 4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) butyl} -   1 H - indazole;          2   - { 4   - [ 4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) butyl} -   1 H - indazole;          4   - chloro -   1   - { 4   -[   4   -(   4   - methylphenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl} -   1 H - pyrazole;          4   - chloro -   1   - { 4   -[   4   -(   4   - methoxyphenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl} -   1 H - pyrazole;          4   - chloro -   1   - { 4   -[   4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] propyl} -   1 H - pyrazole;          4 , 5   - dichloro -   1   - { 4   -[   4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] propyl} -   2   - methyl -   1 H - imidazole;          2   - phenyl -   1   -{   4   -[   4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - imidazole;          1   -{   4   -[   4   -(   4   - methylphenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) butyl} -   1 H - benzimidazole;          4 , 5   - diphenyl -   1   -{   4   -[   4   -[ phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) butyl} -   1 H - imidazole;          4   - chloro -   1   - { 4   -[   4   -(   1   - naphthyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl]butyl} -   1 H - pyrazole;          4   - chloro -   1   - { 4   -[   4   -(   2   - naphthyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl]butyl} -   1 H - pyrazole;          1   -{   2   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] ethyl} -   1 H -benzimidazole;        1   -{   4   -[   4   -(   4   - phenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - benzimidazole hydrochloride;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - benzimidazole;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - benzimidazole hydrochloride;          4 , 5   - dichloro -   2   - methyl -   1   -{   4   -[   4   -(   3   - trifluoromethylphenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl} -   1 H - imidazole - hydrochloride;          4   - chloro -   1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   )- tetrahydropyridinyl )] butyl} -   1 H - pyrazole hydrochloride;          1   -{   4   -[   4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H -indazole hydrochloride;        4 , 5   - dichloro -   1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - imidazole hydrochloride;          4   -(   4   - chlorophenyl )-   1   -{   4   -[   4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) butyl} -   1 H - pyrazole hydrochloride;          4   -(   4   - chlorophenyl )-   1   -{   4   -[   4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) butyl} -   1 H - pyrazole;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl ) butyl} -   1 H - triazole hydrochloride;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - triazole;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   2   - methyl -   1 H - benzimidazole;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - indazole;          2   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   2 H - indazole;          2   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   2 H - benzotriazole hydrochloride;          2   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   2 H - benzotriazole;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - benzotriazole hydrochloride;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - benzotriazole;          4   - chloro -   1   -{   4   -[   4   (   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl]butyl} -   1 H - pyrazole hydrochloride;          1   -{   4   - [ 4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - pyrazole hydrochloride;          1   -{   4   - [ 4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - triazole hydrochloride;          2   - phenyl -   1   - { 4   -[-   4   -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )]- butyl} -   1 H - imidazole hydrochloride;          1   -{   4   - [ 4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - pyrrole hydrochloride;          1   -{   4   - [ 4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - pyrrole;          4   -(   4   - chlorophenyl )-   1   -[   4   -(   4   - hydroxy -   4   - phenyl -   1   - piperdinyl ) butyl] 1 H - pyrazole;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   4   - hydroxy -   1   - piperidinyl]butyl} -   1 H - benzimidazole;          4   - chloro -   1   - { 4   - [ 4   - hydroxy -   4   -(   3   - trifluoromethylphenyl )-   1   - piperidinyl]butyl} -   1 H - pyrazole;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   4   - hydroxy -   1   - piperidinyl]butyl} -   1 H - indazole;          2   -{   4   -[   4   -(   4   - fluorophenyl )-   4   - hydroxy -   1   - piperidinyl]butyl} -   2 H - indazole;          2   -{   4   -[   4   -(   4   - fluorophenyl )-   4   - hydroxy -   1   - piperidinyl]butyl} -   2 H - benzotriazole;          1   -{   4   -[   4   -(   4   - fluorophenyl )-   4   - hydroxy -   1   - piperidinyl]butyl} -   1 H - benzotriazole;          3   - chloro -   1   - { 4   -[   4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - indazole;          3   - chloro -   1   - { 4   -[   4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - indazole hydrochloride;          1   -{   4   -[   4   - hydroxy -   4   -(   4   - fluorophenyl )-   1   - piperidinyl]butyl} -   1 H - triazole;          1   -{   4   -[   4   - hydroxy -   4   -(   4   - chlorophenyl )-   1   - piperidinyl]butyl} -   1 H - triazole;          4 , 5   - dichloro -   1   -{   4   -[   4   -(   4   - hydrophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   2  methyl -   1 H - imidazole hydrochloride;          4 , 5   - dichloro -   1   -{   4   -[   4   -(   4   - phenyl -   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H -imidazole hydrochloride;        1   -{   4   -[   4   -(   4   - fluorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - triazole citrate;          1   -{   4   -[   4   -(   4   - bromophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - triazole;          1   -{   4   -[   4   -(   4   - bromophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - triazole hydrochloride;          1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - triazole;          1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - triazole hydrochloride;          2   - phenyl -   1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - imidazole;  2   - phenyl -   1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - imidazole hydrochloride;          2 , 5   - dimethyl -   1   -{   4   -[   4   -(   4   - phenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - pyrrole;          2 , 5   - dimethyl -   1   -{   4   -[   4   -(   4   - phenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - pyrrole hydrochloride;          2 , 5   - dimethyl -   1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - pyrrole;          2 , 5   - dimethyl -   1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - pyrrole hydrochloride;          1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - pyrrole;          1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -(   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - pyrrole hydrochloride; and          1   -{   4   -[   4   -(   4   - chlorophenyl )-   1   -   1   (   1 , 2 , 3 , 6   - tetrahydropyridinyl )] butyl} -   1 H - triazole citrate,        in the preparation of a medicament for the treatment of acute pain, neuropathic pain or nociceptive pain in mammals, including man.