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4-tert-Butoxycarbonylamino-piperidine-1,4-dicarboxylic acid mono-tert-butyl ester189321-65-142 % similar 3-Oxopyrrolidine-1-carboxylic acid tert-butyl ester101385-93-742 % similar 1,1-Dimethylethyl 2,6-diazaspiro[3.3]heptane-2-carboxylate1041026-70-342 % similar tert-Butyl 6-oxo-2-azaspiro(3.3)heptane-2-carboxylate1181816-12-542 % similar tert-Butyl 3-formylazetidine-1-carboxylate177947-96-542 % similar tert-Butyl 3-methoxyazetidine-1-carboxylate429669-07-842 % similar 4-[(Methylsulfonyl)oxy]piperidine-1-carboxylic acid tert-butyl ester141699-59-442 % similar 1-tert-Butyl 4-ethyl piperidine-1,4-dicarboxylate142851-03-442 % similar 3-(1-((tert-Butoxy)carbonyl)piperidin-4-yl)propanoic acid154775-43-642 % similar tert-Butyl 4-(2-methoxy-2-oxoethyl)piperidine-1-carboxylate175213-46-442 % similar tert-Butyl 4-benzylpiperazine-1-carboxylate57260-70-542 % similar 4-Boc-1-piperazineacetic acid156478-71-642 % similar 5-Oxo-(1,4)diazepane-1-carboxylic acid tert-butyl ester190900-21-142 % similar tert-Butyl (R)-3-formylpyrrolidine-1-carboxylate191347-94-142 % similar (S)-tert-Butyl 3-formylpyrrolidine-1-carboxylate191348-04-642 % similar N-Boc-3-methylene-piperidine276872-89-042 % similar (+-)-1-(tert-Butoxycarbonyl)pyrrolidine-3-carboxaldehyde59379-02-142 % similar tert-Butyl 2,6-diazaspiro[3.4]octane-2-carboxylate885270-84-842 % similar tert-Butyl 4,7-diazaspiro(2.5)octane-7-carboxylate886766-28-542 % similar tert-Butyl octahydropyrrolo(3,4-c)pyrrole-2-carboxylate141449-85-641 % similar