| 1-benzyl-3-carbethoxy-4-piperidone hydrochloride |
| Ethyl 1-benzyl-4-piperidone-3-carboxylate hydrochloride |
| 1-Benzyl-4-piperidone-3-carboxylic Acid Ethyl Ester Hydrochloride |
| 1-Benzyl-3-ethoxycarbonyl-4-piperidone hy-drochloride |
| Ethyl 1-benzyl-4-oxo-3-piperidinecarbo-xylate hydrochloride |
| 1-Benzyl-3-methoxycarbonyl-4-piperidone HCl |
| Ethyl 1-benzyl-4-oxo-3-piperidinecarboxylate hydrochloride |
| 1-Benzyl-3-ethoxycarbonyl-4-pideridone hydrochloride hydrate |
| 1-Benzyl-3-carboethoxy-4-piperidone hydrochloride |