tert-Butyl 1-(3-nitropyridine-2-yl)piperidine-4-ylcarbamate

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

tert-Butyl 4-(2-nitrophenylsulfonamido)piperidine-1-carboxylate

Methyl 4-[(piperidin-4-ylamino)methyl]benzoate dihydrochloride

N-Ethylpiperidine-4-amine dihydrochloride

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

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

tert-Butyl 4-[3-(4-bromophenyl)ureido]piperidine-1-carboxylate

tert-Butyl 4-(2-methoxybenzamido)piperidine-1-carboxylate

tert-Butyl 4-(2-fluorophenylsulfonamido)piperidine-1-carboxylate

N-Ethyl-N-methylpiperidin-4-amine hydrochloride