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tert-Butyl 6-oxo-2,7-diazaspiro[4.4]nonane-2-carboxylate1194376-44-750 % similar tert-Butyl 2-oxa-6-azaspiro[3.5]nonane-6-carboxylate1245816-29-850 % similar tert-Butyl 7-oxo-2-azaspiro[3.5]nonane-2-carboxylate1363381-22-950 % similar 1-tert-Butoxycarbonyl-4-piperidinecarboxaldehyde137076-22-350 % similar N-Boc-hexahydro-1H-azepin-4-one188975-88-450 % similar 4-(2-Amino-ethyl)-piperazine-1-carboxylic acid tert-butyl ester192130-34-050 % similar 4-Thiocarbamoyl-piperazine-1-carboxylic acid tert-butyl ester196811-66-250 % similar 3-Oxo-azetidine-1-carboxylic acid tert-butyl ester398489-26-450 % similar N-(tert-Butoxycarbonyl)-2,5-dihydro-1H-pyrrole73286-70-150 % similar tert-Butyl 4-(2-hydroxyethyl)piperazine-1-carboxylate77279-24-450 % similar 1-(1,1-Dimethylethyl) 4-methyl 4-(aminomethyl)-1,4-piperidinedicarboxylate362703-35-349 % similar Tetrt-butyl5-methyl-1,4-diazepane-1-carboxylate194032-42-349 % similar N-Boc-4-piperidinemethanol123855-51-649 % similar 1-Boc-4-(aminomethyl)piperidine144222-22-049 % similar 4-Acetyl-piperidine-1-carboxylic acid tert-butyl ester206989-61-949 % similar tert-Butyl 4-(chloromethyl)piperidine-1-carboxylate479057-79-949 % similar 1-Boc-3-oxopiperazine76003-29-749 % similar 1-(tert-Butoxycarbonyl)-4-(2-hydroxyethyl)piperidine89151-44-049 % similar 3-Oxopyrrolidine-1-carboxylic acid tert-butyl ester101385-93-749 % similar tert-Butyl 6-oxo-2-azaspiro(3.3)heptane-2-carboxylate1181816-12-549 % similar