tert-Butyl 1-(3-fluoro-2-nitrophenyl)piperidine-4-ylcarbamate

2-[(2-Fluoro-4-nitrophenoxy)methyl]tetrahydrofuran

N-(Piperidin-4-yl)isonicotinamide dihydrochloride

tert-Butyl 4-(4-nitrophenylsulfonamido)piperidine-1-carboxylate

1-Phenyl-3-(piperidin-4-yl)urea hydrochloride

1-(4-Bromophenyl)-3-(piperidin-4-yl)ureahydrochloride

tert-Butyl 4-(3-p-tolylureido)piperidine-1-carboxylate

4-Bromo-N-(piperidin-4-yl)benzamide hydrochloride

3-Nitro-N-(piperidin-4-yl)benzenesulfonamide hydrochloride

tert-Butyl 4-[(piperidine-1-carbonyl)amino]piperidine-1-carboxylate

tert-Butyl 4-[(morpholine-4-carbonyl)amino]piperidine-1-carboxylate