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1-Boc-pyrrolidine-2,4-dione182352-59-6100 % similar tert-Butyl 2,4-dioxopiperidine-1-carboxylate845267-78-971 % similar 3-Oxo-azetidine-1-carboxylic acid tert-butyl ester398489-26-456 % similar 1,1-Dimethylethyl 2-oxo-1-pyrrolidinecarboxylate85909-08-654 % similar tert-Butyl 2-oxopiperidine-1-carboxylate85908-96-953 % similar 3-Oxopyrrolidine-1-carboxylic acid tert-butyl ester101385-93-750 % similar tert-Butyl 4-oxopiperidine-1-carboxylate79099-07-349 % similar 1-Boc-3-piperidone98977-36-748 % similar tert-Butyl 6-oxo-2-azaspiro(3.3)heptane-2-carboxylate1181816-12-546 % similar 1,2-Bis(1,1-dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate166410-05-545 % similar cis-tert-Butyl 5-oxohexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate146231-54-145 % similar N-Boc-hexahydro-5-oxocyclopenta[C]pyrrole148404-28-845 % similar N-Boc-nortropinone185099-67-645 % similar 1,1-Dimethylethyl 1-pyrrolidinecarboxylate86953-79-944 % similar tert-Butyl 7-oxo-2-azaspiro[3.5]nonane-2-carboxylate1363381-22-944 % similar N-Boc-hexahydro-1H-azepin-4-one188975-88-444 % similar tert-Butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate203661-69-244 % similar N-(tert-Butoxycarbonyl)iminodiacetic Acid56074-20-544 % similar N-(tert-Butoxycarbonyl)-2,5-dihydro-1H-pyrrole73286-70-143 % similar 1,1-Dimethylethyl 1-piperidinecarboxylate75844-69-843 % similar