Patent ID: 7582655

Claim:
A 4-piperidone compound represented by structural formula (I): wherein R 1 and R 2 independently represent a substituted or unsubstituted phenyl, said substituted phenyl having a single substituent at the 2, 3, or 4 position or having multiple independent substituents at the 2,3; 2,4; 2,5; 2,6; 3,4; 3,5; 3,6; 4,6; 2,3,4; 2,4.6; or 3,4,5 positions, said substituents being selected from the group consisting of halogen, alkoxy, alkyl, phenyl, nitro, and phosphonate groups; R 3 and R 4 independently represent H, alkyl, hydroxyalkyl, or carboxylate ester, wherein each R 3 and each R 4 may be the same or different; n represents an integer from 1 to 4 and indicates the number of Y(CH 2 ) o Z substituents on the benzene ring; o represent an integer from 1 to 4; X represents (CH 2 ) r , CO, COO, where r represents an integer from 1 to 4; Y represents O, S, NH, N(alkyl), N(aryl), or (CH 2 ) s , where s represents an integer from 1 to 4; and Z represents N(alkyl) 2 , NH(alkyl), N(aryl) 2 , NH(aryl), +N(alkyl) 3 , or where B represents O, S, CH 2 , NH, N-alkyl, or N-aryl, p represents 1 or 2, and q represents 2 or 3; or a pharmaceutically acceptable salt thereof.