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tert-Butyl 2,4-dioxopiperidine-1-carboxylate845267-78-9100 % similar 1-Boc-pyrrolidine-2,4-dione182352-59-671 % similar 1,1-Dimethylethyl 2-oxo-1-pyrrolidinecarboxylate85909-08-664 % similar tert-Butyl 2-oxopiperidine-1-carboxylate85908-96-962 % similar tert-Butyl 4-oxopiperidine-1-carboxylate79099-07-358 % similar 3-Oxopyrrolidine-1-carboxylic acid tert-butyl ester101385-93-755 % similar N-Boc-hexahydro-1H-azepin-4-one188975-88-453 % similar tert-Butyl 2,2-dimethyl-4-oxopiperidine-1-carboxylate346593-03-151 % similar tert-Butyl 2-methyl-4-oxopiperidine-1-carboxylate190906-92-449 % similar 1-Piperidinecarboxylicacid,2-methyl-4-oxo-,1,1-dimethylethylester,(2R)-(9ci)790667-43-549 % similar tert-Butyl 3-oxoazetidine-1-carboxylate398489-26-449 % similar 1,1-Dimethylethyl 9-oxo-3-azaspiro[5.5]undecane-3-carboxylate873924-08-448 % similar 1,1-Dimethylethyl 1-pyrrolidinecarboxylate86953-79-946 % similar tert-Butyl 7-oxo-2-azaspiro[3.5]nonane-2-carboxylate1363381-22-945 % similar tert-Butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate203661-69-245 % similar 1-Boc-4-methylenepiperidine159635-49-145 % similar 1,1-Dimethylethyl 1-piperidinecarboxylate75844-69-845 % similar 1,1-Dimethylethyl N-methyl-N-(4-oxocyclohexyl)carbamate400899-84-544 % similar tert-Butyl 6-oxo-2-azaspiro(3.3)heptane-2-carboxylate1181816-12-544 % similar 1-tert-Butyl 2-methyl 4-oxopiperidine-1,2-dicarboxylate81357-18-844 % similar