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1-tert-Butyl 2-methyl (2R,4S)-4-aminopyrrolidine-1,2-dicarboxylate254881-77-151 % similar (2S,4R)-4-Hydroxypyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester74844-91-051 % similar (S)-1-N-Boc-piperazine-2-carboxylic acid methyl ester796096-64-551 % similar 1-tert-Butyl 2-methyl 4-oxopiperidine-1,2-dicarboxylate81357-18-851 % similar 1-(1,1-Dimethylethyl) 4-methyl 1,4-piperidinedicarboxylate124443-68-150 % similar (2S,4S)-1-tert-Butyl 2-methyl 4-aminopyrrolidine-1,2-dicarboxylate hydrochloride171110-72-848 % similar 1-tert-Butyl 2-methyl (2S,4R)-4-aminopyrrolidine-1,2-dicarboxylate hydrochloride334999-32-548 % similar 1-(1,1-Dimethylethyl) 2-methyl (2S,4S)-4-cyano-1,2-pyrrolidinedicarboxylate487048-28-248 % similar 1-tert-Butyl 3-methyl pyrrolidine-1,3-dicarboxylate122684-33-748 % similar (S)-1-Boc-pyrrolidine-3-carboxylic acid methyl ester313706-15-948 % similar 1-tert-Butyl 3-methyl (3R)-pyrrolidine-1,3-dicarboxylate441717-40-448 % similar Methyl N-boc-piperidine-3-carboxylate148763-41-147 % similar N-Boc-3,4-dehydro-L-proline methyl ester74844-93-247 % similar 1-tert-Butyl 3-methyl piperazine-1,3-dicarboxylate129799-08-245 % similar 1-tert-Butyl 3-methyl 4-oxopiperidine-1,3-dicarboxylate161491-24-345 % similar 1-(1,1-Dimethylethyl) 3-methyl (3S)-1,3-piperazinedicarboxylate314741-39-445 % similar 1-(1,1-Dimethylethyl) 3-methyl (3R)-1,3-piperazinedicarboxylate438631-77-745 % similar 1,2-Bis(1,1-dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate166410-05-542 % similar Boc-val-ome58561-04-942 % similar Methyl cis-3-(boc-amino)C...142733-63-941 % similar