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1-N-Ethoxycarbonyl-3-pyrrolidone14891-10-2100 % similar 1-(Ethoxycarbonyl)-4-piperidone29976-53-279 % similar 3-Oxopyrrolidine-1-carboxylic acid tert-butyl ester101385-93-757 % similar Benzyl 3-oxopyrrolidine-1-carboxylate130312-02-655 % similar Ethyl 1-piperazinecarboxylate120-43-453 % similar Ethyl 4-(methylamino)-1-piperidinecarboxylate73733-69-450 % similar Ethyl 4-amino-1-piperidinecarboxylate58859-46-449 % similar Ethyl 4-hydroxypiperidine-1-carboxylate65214-82-649 % similar 4-(2-Hydroxyethyl)-piperazin-1-carboxylic acid ethyl ester14000-66-947 % similar 1-Boc-3-piperidone98977-36-746 % similar Benzyl 3-oxopiperidine-1-carboxylate61995-20-845 % similar 1-(Ethoxycarbonyl)-4-piperidinecarboxylic acid118133-15-645 % similar Benzyl 4-oxo-1-piperidinecarboxylate19099-93-545 % similar N-Carbethoxy-4-tropinone32499-64-245 % similar tert-Butyl 4-oxopiperidine-1-carboxylate79099-07-343 % similar Diethyl γ-ketopimelate6317-49-341 % similar N-Methyl-N-nitrosourethane615-53-241 % similar N-Carbethoxyphthalimide22509-74-640 % similar 1-Methylpyrrolidin-3-one68165-06-039 % similar tert-Butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate135716-08-439 % similar