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4-Oxo-piperidine-3-carboxylic acid ethyl ester67848-59-3100 % similar Ethyl 4-piperidone-3-carboxylate hydrochloride4644-61-591 % similar Methyl 4-oxo-3-piperidinecarboxylate hydrochloride71486-53-861 % similar Ethyl 2-oxocyclopentanecarboxylate611-10-958 % similar Ethyl 2-oxocyclohexanecarboxylate1655-07-857 % similar Diethyl succinylsuccinate787-07-556 % similar Ethyl morpholine-2-carboxylate107904-06-351 % similar (-)-Ethyl nipecotate25137-01-351 % similar (+)-Ethyl nipecotate37675-18-651 % similar Ethyl nipecotate5006-62-251 % similar Ethyl nipecotate71962-74-851 % similar 1,3-Diethyl 2-ethylpropanedioate133-13-150 % similar Ethyl pyrrolidine-3-carboxylate hydrochloride80028-44-050 % similar Ethyl 2-oxopyrrolidine-3-carboxylate36821-26-849 % similar Ethyl isonipecotate1126-09-649 % similar (R)-Piperidine-3-carboxylic acid ethyl ester hydrochloride37675-19-748 % similar Ethyl 3-oxooxane-4-carboxylate388109-26-048 % similar Diethyl isobutylmalonate10203-58-447 % similar Propylmalonic acid diethyl ester2163-48-647 % similar Ethyl isobutyrate97-62-147 % similar