(1R,4R)-4-(5-Nitropyridine-2-ylamino)cyclohexanol

1-(Cyclopentyloxy)-4-nitrobenzene

1-(Cyclopentyloxy)-2-nitrobenzene

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

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

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

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

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

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

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

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