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4-[(tert-Butoxy)carbonyl]piperazine-2-carboxylic acid128019-59-0100 % similar (S)-4-N-Boc-piperazine-2-carboxylic acid848482-93-9100 % similar 1-tert-Butyl 3-methyl piperazine-1,3-dicarboxylate129799-08-267 % similar 1-(1,1-Dimethylethyl) 3-methyl (3S)-1,3-piperazinedicarboxylate314741-39-467 % similar 1-(1,1-Dimethylethyl) 3-methyl (3R)-1,3-piperazinedicarboxylate438631-77-767 % similar tert-Butyl 3-methylpiperazine-1-carboxylate120737-59-963 % similar (S)-4-N-Boc-2-methylpiperazine147081-29-663 % similar (R)-4-Boc-2-methylpiperazine163765-44-463 % similar (R)-3-Hydroxymethyl-piperazine-1-carboxylic acid tert-butyl ester278788-66-262 % similar 4-N-Boc-2-hydroxymethylpiperazine301673-16-562 % similar 1,1-Dimethylethyl (3S)-3-(hydroxymethyl)-1-piperazinecarboxylate314741-40-762 % similar (3S)-1-[(tert-Butoxy)carbonyl]pyrrolidine-3-carboxylic acid140148-70-561 % similar (S)-1-N-Boc-3-isopropylpiperazine475272-54-961 % similar 1-((tert-Butoxy)carbonyl)pyrrolidine-3-carboxylic acid59378-75-561 % similar 1-(1,1-Dimethylethyl) (3R)-1,3-pyrrolidinedicarboxylate72925-16-761 % similar 1-(1,1-Dimethylethyl) (3R)-1,3-piperidinedicarboxylate163438-09-360 % similar tert-Butyl 3-ethylpiperazine-1-carboxylate438049-35-560 % similar 1-((tert-Butoxy)carbonyl)piperidine-3-carboxylic acid71381-75-460 % similar 1-Boc-3-piperidinecarboxylic acid84358-12-360 % similar L-1-Boc-nipecotic acid88495-54-960 % similar