(R)-tert-Butyl 1-(5-nitropyridine-2-yl)pyrrolidine-3-ylcarbamate

N-(Piperidin-4-yl)benzenesulfonamide hydrochloride

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

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

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

tert-Butyl 4-(3-phenylureido)piperidine-1-carboxylate

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

tert-Butyl 4-[4-(methoxycarbonyl)benzylamino]piperidine-1-carboxylate

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

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

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