N-[2-[3,5-bis(trifluoromethyl)phenyl]ethyl]-2-(2-chlorophenyl)-2-(4-piperidin-1-ylpiperidin-1-yl)acetamide;N-[2-[3,5-bis(trifluoromethyl)phenyl]ethyl]-2-(3,4-dichlorophenyl)-N-methyl-2-(4-piperidin-1-ylpiperidin-1-yl)acetamide;N-[2-[3,5-bis(trifluoromethyl)phenyl]ethyl]-N-ethyl-2-phenyl-2-(4-piperidin-1-ylpiperidin-1-yl)acetamide;N-[2-[3,5-bis(trifluoromethyl)phenyl]ethyl]-2-phenyl-2-(4-piperidin-1-ylpiperidin-1-yl)-N-propan-2-ylacetamide;N-[3-[2,4-bis(trifluoromethyl)phenyl]propyl]-N-methyl-2-phenyl-2-(4-piperidin-1-ylpiperidin-1-yl)acetamide;N-methyl-N-[2-[3-methyl-5-(trifluoromethyl)phenyl]ethyl]-2-phenyl-2-(4-piperidin-1-ylpiperidin-1-yl)acetamide