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tert-Butyl 6-oxo-2-azaspiro(3.3)heptane-2-carboxylate1181816-12-545 % similar 1,1-Dimethylethyl 2,4-dioxo-1,3,8-triazaspiro[4.5]decane-8-carboxylate183673-70-345 % similar 4-(2-Aminoethyl)-1-boc-piperidine146093-46-144 % similar 4-Boc-1-piperazineacetic acid156478-71-644 % similar 1-(tert-Butoxycarbonyl)-4-piperidinecarboxylic acid174316-71-344 % similar N-Boc-3-methylene-piperidine276872-89-044 % similar 1-Boc-4-ethynylpiperidine287192-97-644 % similar N-Boc-piperidine-4-carboxylic acid84358-13-444 % similar 1-(tert-Butoxycarbonyl)piperidine-4-carboxamide91419-48-644 % similar tert-Butyl 4-cyanopiperidine-1-carboxylate91419-52-244 % similar 1,1-Dimethylethyl 3,8-diazabicyclo[3.2.1]octane-3-carboxylate201162-53-044 % similar 1-Boc-3-methylaminoazetidine454703-20-944 % similar tert-Butyl 3,6-dihydropyridine-1(2H)-carboxylate85838-94-444 % similar tert-Butyl 6-Oxa-3-azabicyclo(3.1.0)hexane-3-carboxylate114214-49-244 % similar 1,1-Dimethylethyl 3,3-difluoro-1-azetidinecarboxylate1255666-59-144 % similar 4-(4-Aminophenyl)piperazine-1-carboxylic acid tert-butyl ester170911-92-944 % similar tert-Butyl 4-(4-bromophenyl)piperazine-1-carboxylate352437-09-344 % similar 1,1-Dimethylethyl 3-hydroxy-3-methyl-1-piperidinecarboxylate1104083-27-343 % similar tert-Butyl 3-methylpiperazine-1-carboxylate120737-59-943 % similar 1-(1,1-Dimethylethyl) 4-methyl 1,4-piperidinedicarboxylate124443-68-143 % similar