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2,5-Diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester198989-07-045 % similar 2,8-Diaza-spiro[4.5]decane-8-carboxylic acid tert-butyl ester236406-39-645 % similar tert-Butyl 2,8-diazaspiro[4.5]decane-2-carboxylate336191-17-445 % similar 1,1-Dimethylethyl 3-(1-hydroxy-1-methylethyl)-1-azetidinecarboxylate1257293-79-044 % similar 1-tert-Butoxycarbonyl-4-piperidinecarboxaldehyde137076-22-344 % similar 1-Boc-3-cyanoazetidine142253-54-144 % similar 1-Boc-Azetidine-3-carboxylic acid142253-55-244 % similar 2-(tert-Butoxycarbonyl)-2,7-diazaspiro[3.5]nonane236406-55-644 % similar 3-Ethynyl-1-azetidinecarboxylic acid tert-butyl ester287193-01-544 % similar tert-Butyl 2,7-diazaspiro[3.5]nonane-7-carboxylate896464-16-744 % similar 1-Boc-3-piperidone98977-36-744 % similar 1-(1,1-Dimethylethyl) 3-ethyl 4-oxo-1,3-piperidinedicarboxylate98977-34-544 % similar 1-Boc-4-methylenepiperidine159635-49-144 % similar Ethyl 1-[(1,1-dimethylethoxy)carbonyl]-4-piperidineacetate135716-09-544 % similar tert-Butyl 3-cyano-4-oxopiperidine-1-carboxylate914988-10-644 % similar 3-Oxo-azetidine-1-carboxylic acid tert-butyl ester398489-26-444 % similar N-(tert-Butoxycarbonyl)-2,5-dihydro-1H-pyrrole73286-70-144 % similar 1-Boc-4-spiro-[3-(2-pyrrolidinone)] piperidine268550-48-744 % similar N-Boc-cis-2,6-diethyl-4-piperidone1003843-30-843 % similar N-Boc-4-piperidinemethanol123855-51-643 % similar