1-(2,4-Difluorobenzoyl)piperazine

1-(3,5-difluorobenzoyl)-1,4-diazepane

3-cyclopentyl-1-(1,4-diazepan-1-yl)propan-1-one

1-(3-methylpiperazin-1-yl)-2-phenylethan-1-one

1-(3-methylpiperazin-1-yl)octan-1-one

1-(3-methylpiperazin-1-yl)hexan-1-one

1-(3-fluorobenzoyl)-3-methylpiperazine

1-[3,5-bis(trifluoromethyl)benzoyl]-3-methylpiperazine

1-(3,4-difluorobenzoyl)-3-methylpiperazine

1-cyclohexanecarbonyl-2-methylpiperazine

2-methyl-1-(3,4,5-trimethoxybenzoyl)piperazine