N,N-Diethyl-β-alaninhydrochlorid 1-Ethylpiperidin-4-on Ethyl-1-benzyl-4-oxopiperidin-3-carboxylathydrochlorid 1-(β-Phenethyl)-4-piperidon 4-(Diethylamino)butan-2-on Ethyl-4-morpholinpropionat Piperidin-1-propionsure N-Benzoyl-4-piperidon 1-Benzyl-4-piperidon 1-Propyl-4-piperidon N-Acetyl-4-piperidon Ethylhexahydro-1H-azepin-1-propionat Ethylpiperidin-1-propionat 3-(Hexahydro-1H-azepin-1-yl)-3'-nitropropiophenonhydrochlorid