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4-[(tert-Butoxy)carbonyl]piperazine-2-carboxylic acid128019-59-051 % similar (S)-4-N-Boc-piperazine-2-carboxylic acid848482-93-951 % similar tert-Butyl 2,9-diazaspiro(5.5)undecane-9-carboxylate1023595-19-850 % similar tert-Butyl 4-hydroxypiperidine-1-carboxylate109384-19-250 % similar N-Boc-N,N-bis(2-chloroethyl)amine118753-70-150 % similar 1-(tert-Butoxycarbonyl)-4-piperidinecarboxylic acid174316-71-350 % similar 1-Boc-4-methylpiperidine-4-carboxylic acid189321-63-950 % similar 1-Boc-4-methyl-piperidin-4-OL406235-30-150 % similar tert-Butyl 4-oxopiperidine-1-carboxylate79099-07-350 % similar N-Boc-piperidine-4-carboxylic acid84358-13-450 % similar tert-Butyl 4,7-diazaspiro(2.5)octane-7-carboxylate886766-28-550 % similar (R)-3-Hydroxymethyl-piperazine-1-carboxylic acid tert-butyl ester278788-66-249 % similar 4-N-Boc-2-hydroxymethylpiperazine301673-16-549 % similar 1,1-Dimethylethyl (3S)-3-(hydroxymethyl)-1-piperazinecarboxylate314741-40-749 % similar tert-Butyl 2,7-diazaspiro(3.5)nonane-7-carboxylate hydrochloride1023301-84-949 % similar tert-Butyl 3-methylpiperazine-1-carboxylate120737-59-949 % similar (S)-4-N-Boc-2-methylpiperazine147081-29-649 % similar (R)-4-Boc-2-methylpiperazine163765-44-449 % similar 4-(2-Amino-ethyl)-piperazine-1-carboxylic acid tert-butyl ester192130-34-049 % similar 4-Thiocarbamoyl-piperazine-1-carboxylic acid tert-butyl ester196811-66-249 % similar