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4-(9H-Fluoren-9-ylmethoxycarbonylamino)-piperidine-1,4-dicarboxylic acid mono-tert-butyl ester183673-66-743 % similar 1-Boc-4-(2-carboxyphenyl)piperazine444582-90-543 % similar 4-tert-Butoxycarbonylamino-piperidine-1,4-dicarboxylic acid mono-tert-butyl ester189321-65-143 % similar tert-Butyl 6-oxo-2,7-diazaspiro[4.4]nonane-2-carboxylate1194376-44-742 % similar tert-Butyl 3-phenylpiperazine-1-carboxylate502649-25-442 % similar tert-Butyl 1,4-diazepane-1-carboxylate112275-50-042 % similar 1-Boc-3-piperidone98977-36-742 % similar Boc-D-N-me-phe DCHA102185-45-541 % similar Boc-N-me-phe DCHA40163-88-041 % similar 1-(1,1-Dimethylethyl) (3R)-1,3-piperidinedicarboxylate163438-09-340 % similar 1-((tert-Butoxy)carbonyl)piperidine-3-carboxylic acid71381-75-440 % similar 1-Boc-3-piperidinecarboxylic acid84358-12-340 % similar L-1-Boc-nipecotic acid88495-54-940 % similar 1,1-Dimethylethyl (2S)-2-(phenylmethyl)-1-piperazinecarboxylate169447-86-340 % similar 1-Boc-2-benzyl-piperidin-4-one193480-28-340 % similar 1,1-Dimethylethyl 2-(phenylmethyl)-1-piperazinecarboxylate481038-63-540 % similar 4-[4-(tert-Butoxycarbonyl)piperazin-1-yl]benzoic acid162046-66-440 % similar tert-Butyl 2-oxo-6-azaspiro[3.4]octane-6-carboxylate203661-71-640 % similar tert-Butyl 2,6-diazaspiro(3.4)octane-6-carboxylate885270-86-040 % similar tert-Butyl 4,7-diazaspiro(2.5)octane-7-carboxylate886766-28-540 % similar