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tert-Butyl 3-Benzylpiperazine-1-carboxylate502649-29-8100 % similar tert-Butyl 3-phenylpiperazine-1-carboxylate502649-25-469 % similar tert-Butyl 3-ethylpiperazine-1-carboxylate438049-35-565 % similar (R)-3-Hydroxymethyl-piperazine-1-carboxylic acid tert-butyl ester278788-66-264 % similar 4-N-Boc-2-hydroxymethylpiperazine301673-16-564 % similar 1,1-Dimethylethyl (3S)-3-(hydroxymethyl)-1-piperazinecarboxylate314741-40-764 % similar Methyl 4-[(1,1-dimethylethoxy)carbonyl]-2-piperazineacetate183742-33-859 % similar tert-Butyl 3-methylpiperazine-1-carboxylate120737-59-957 % similar (S)-4-N-Boc-2-methylpiperazine147081-29-657 % similar (R)-4-Boc-2-methylpiperazine163765-44-457 % similar 1,1-Dimethylethyl (2S)-2-(phenylmethyl)-1-piperazinecarboxylate169447-86-357 % similar 1,1-Dimethylethyl 2-(phenylmethyl)-1-piperazinecarboxylate481038-63-557 % similar (S)-1-N-Boc-3-isopropylpiperazine475272-54-956 % similar tert-Butyl 4-benzylpiperazine-1-carboxylate57260-70-555 % similar 1-N-Boc-4-(phenylamino)piperidine125541-22-255 % similar 4-[(tert-Butoxy)carbonyl]piperazine-2-carboxylic acid128019-59-053 % similar (S)-4-N-Boc-piperazine-2-carboxylic acid848482-93-953 % similar 1,1-Dimethylethyl 3,8-diazabicyclo[3.2.1]octane-3-carboxylate201162-53-052 % similar 1-tert-Butyl 3-methyl piperazine-1,3-dicarboxylate129799-08-252 % similar 1-(1,1-Dimethylethyl) 3-methyl (3S)-1,3-piperazinedicarboxylate314741-39-452 % similar