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1-tert-Butyl 2-methyl 4-oxopiperidine-1,2-dicarboxylate81357-18-844 % similar 5-Oxo-(1,4)diazepane-1-carboxylic acid tert-butyl ester190900-21-143 % similar tert-Butyl 2-oxo-6-azaspiro[3.4]octane-6-carboxylate203661-71-643 % similar cis-tert-Butyl 5-oxohexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate146231-54-143 % similar N-Boc-hexahydro-5-oxocyclopenta[C]pyrrole148404-28-843 % similar N-Boc-nortropinone185099-67-643 % similar N-Boc-diethanolamine103898-11-943 % similar N-Boc-N,N-bis(2-chloroethyl)amine118753-70-143 % similar 1-Boc-4-methylpiperazine53788-49-143 % similar tert-Butyl piperazine-1-carboxylate57260-71-643 % similar Di-tert-butyl (2S)-5-oxopyrrolidine-1,2-dicarboxylate91229-91-342 % similar 1-Boc-2-phenyl-piperidin-4-one849928-30-942 % similar tert-Butyl 3-methylidenepyrrolidine-1-carboxylate114214-71-042 % similar tert-Butyl (2-bromoethyl)(methyl)carbamate263410-12-441 % similar Boc-L-pyroglutaminol81658-25-541 % similar 3-Oxo-1-oxa-8-aza-spiro[4.5]decane-8-carboxylic acid tert-butyl ester954236-44-341 % similar N-(tert-Butoxycarbonyl)-2,5-dihydro-1H-pyrrole73286-70-141 % similar N-Boc-cis-2,6-diethyl-4-piperidone1003843-30-841 % similar 9-Boc-7-oxa-9-azabicyclo[3.3.1]nonan-3-one280761-97-941 % similar 1-(tert-Butoxycarbonyl)-3,3-dimethyl-4-oxopiperidine324769-06-441 % similar