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(R)-3-Hydroxymethyl-piperazine-1-carboxylic acid tert-butyl ester278788-66-237 % similar 4-N-Boc-2-hydroxymethylpiperazine301673-16-537 % similar 1,1-Dimethylethyl (3S)-3-(hydroxymethyl)-1-piperazinecarboxylate314741-40-737 % similar (S)-2-(1-BOC-2-pyrrolidinyl)acetic acid56502-01-337 % similar (S)-4-Methylene-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester84348-38-937 % similar N-Boc-cis-4-hydroxy-L-proline87691-27-837 % similar 1-(1,1-Dimethylethyl) (2S,4S)-4-(methoxymethyl)-1,2-pyrrolidinedicarboxylate1378388-16-937 % similar tert-Butyl 4-hydroxypiperidine-1-carboxylate109384-19-237 % similar 1-(2-N-Boc-aminoethyl)piperazine140447-78-537 % similar 4-Chloro-piperidine-1-carboxylic acid tert-butyl ester154874-94-937 % similar tert-Butyl 4-bromopiperidine-1-carboxylate180695-79-837 % similar 1,1-Dimethylethyl 3,8-diazabicyclo[3.2.1]octane-3-carboxylate201162-53-037 % similar tert-Butyl 4-iodopiperidine-1-carboxylate301673-14-337 % similar tert-Butyl 4-aminopiperidine-1-carboxylate87120-72-737 % similar Piperidine-4-carboxylic acid tert-butyl ester hydrochloride892493-65-137 % similar 2-(1,1-Dimethylethyl) 1-(phenylmethyl) (2S)-1,2-pyrrolidinedicarboxylate16881-39-337 % similar tert-Butyl 2,7-diazaspiro(3.5)nonane-7-carboxylate hydrochloride1023301-84-937 % similar 1,1-Dimethylethyl 5-oxo-2-azabicyclo[2.2.1]heptane-2-carboxylate198835-06-237 % similar 3-(4-(tert-Butoxycarbonyl)piperazin-1-yl)propanoic acid242459-97-837 % similar 4-[(tert-Butoxy)carbonyl]piperazine-2-carboxylic acid128019-59-036 % similar