3-Oxocyclopent-1-enecarboxylic acid (stabilised with 0.1 % HQ)

5-Nitro-2-(piperidine-1-yl)pyridine

tert-Butyl 4-(4-fluoro-2-nitrophenylamino)piperidine-1-carboxylate

tert-Butyl 4-(2-fluoro-6-nitrophenylamino)piperidine-1-carboxylate

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

tert-Butyl 4-[(pyridine-2-ylmethyl)amino]piperidine-1-carboxylate

N-(2-Chlorobenzyl)piperidine-4-amine dihydrochloride

2-Fluoro-N-(piperidine-4-yl)benzamido hydrochloride

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

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

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