tert-Butyl 1-(5-nitropyridine-2-yl)piperidine-4-ylcarbamate

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

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

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

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

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

2-Methoxy-N-(piperidin-4-yl)acetamide hydrochloride

tert-Butyl 4-(2-hydroxy-2-methylpropanamido)piperidine-1-carboxylate

4-Bromo-N-(piperidin-4-yl)benzamide hydrochloride

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

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