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

(R)-tert-Butyl 1-(2-fluoro-6-nitrophenyl)pyrrolidine-3-ylcarbamate

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

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

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

N-(4-Nitrobenzyl)piperidine-4-amine dihydrochloride

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

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

tert-Butyl 4-(3-ethylureido)piperidine-11-carboxylate

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

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