(1R,4R)-4-(3-Fluoro-2-nitrophenylamino)cyclohexanol

4-[{1-(tert-Butoxycarbonyl)piperidin-4-ylamino}methyl]benzoic acid

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

1-(Piperidin-4-yl)-3-p-tolylurea hydrochloride

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

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

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

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

tert-Butyl 4-[3-(2-bromophenyl)ureido]piperidine-1-carboxylate

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

2-Hydroxy-2-methyl-N-(piperidin-4-yl)propanamide hydrochloride