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tert-Butyl (2R,5S)-2,5-dimethylpiperazine-1-carboxylate309915-46-6100 % similar (2S,5R)-2,5-Dimethyl-piperazine-1-carboxylic acid tert-butyl ester548762-66-9100 % similar 1,1-Dimethylethyl (2R,5R)-5-(hydroxymethyl)-2-methyl-1-piperazinecarboxylate1403898-64-567 % similar tert-Butyl 2-methylpiperazine-1-carboxylate120737-78-260 % similar 1,1-Dimethylethyl (2S)-2-methyl-1-piperazinecarboxylate169447-70-560 % similar (R)-1-N-Boc-2-methylpiperazine170033-47-360 % similar tert-Butyl 3-methylpiperazine-1-carboxylate120737-59-956 % similar (S)-4-N-Boc-2-methylpiperazine147081-29-656 % similar (R)-4-Boc-2-methylpiperazine163765-44-456 % similar tert-Butyl (2R,6S)-2,6-dimethylpiperazine-1-carboxylate180975-66-054 % similar (1S,4S)-2-Boc-2,5-diazabicyclo[2.2.1]heptane113451-59-552 % similar tert-Butyl 2,5-diazabicyclo[2.2.1]heptane-2-carboxylate hydrochloride134003-84-252 % similar 2,5-Diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester198989-07-052 % similar tert-Butyl 2-methyl-4-oxopiperidine-1-carboxylate190906-92-449 % similar 1-Piperidinecarboxylicacid,2-methyl-4-oxo-,1,1-dimethylethylester,(2R)-(9ci)790667-43-549 % similar Tetrt-butyl5-methyl-1,4-diazepane-1-carboxylate194032-42-348 % similar (S)-1-Boc-2-isopropylpiperazine674792-05-348 % similar (2S,4S)-N-Boc-4-methylpyrrolidine-2-carboxylic acid364750-81-247 % similar tert-Butyl octahydropyrrolo(3,4-c)pyrrole-2-carboxylate141449-85-647 % similar cis-2-Boc-hexahydropyrrolo[3,4-C]pyrrole250275-15-147 % similar