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Ethyl N-cbz-4-oxopyrrolidine-3-carboxylate51814-19-8100 % similar Ethyl 1-benzyl-4-oxopyrrolidine-3-carboxylate1027-35-664 % similar 1-tert-Butyl 3-ethyl 4-oxopyrrolidine-1,3-dicarboxylate146256-98-659 % similar Ethyl 3-oxo-1-(phenylmethyl)-4-piperidinecarboxylate39514-19-757 % similar Methyl 1-cbz-azetidine-3-carboxylate757239-60-454 % similar Ethyl 1-benzyl-3-oxopiperidine-4-carboxylate hydrochloride52763-21-054 % similar 1,3-Diethyl 2-(phenylmethyl)propanedioate607-81-853 % similar Ethyl 1-benzyl-4-oxopiperidine-3-carboxylate hydrochloride1454-53-153 % similar 1,3-Diethyl 2-(2-phenylethyl)propanedioate6628-68-852 % similar Benzyl 6-oxa-3-azabicyclo(3.1.0)hexane-3-carboxylate31865-25-551 % similar Phenylmethyl 3-amino-1-azetidinecarboxylate112257-20-250 % similar Benzyl 3-hydroxyazetidine-1-carboxylate128117-22-650 % similar (3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester1428243-26-850 % similar Methyl N-Cbz-piperidine-3-carboxylate174543-74-948 % similar Ethyl 2-benzylacetoacetate620-79-148 % similar 3-Methyl 1-(phenylmethyl) 1,3-piperazinedicarboxylate129799-11-747 % similar 1-Benzyloxycarbonylazetidine-3-carboxylic acid97628-92-747 % similar Benzyl 3-oxopyrrolidine-1-carboxylate130312-02-647 % similar Benzyl 3-pyrroline-1-carboxylate31970-04-447 % similar Phenylmethyl (3S)-3-methyl-1-piperazinecarboxylate612493-87-546 % similar