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(S)-1-N-Boc-piperazine-2-carboxylic acid methyl ester796096-64-551 % similar (2S,4S)-1-tert-Butyl 2-methyl 4-aminopyrrolidine-1,2-dicarboxylate hydrochloride171110-72-851 % similar 1-tert-Butyl 2-methyl (2S,4R)-4-aminopyrrolidine-1,2-dicarboxylate hydrochloride334999-32-551 % similar 1-(1,1-Dimethylethyl) 2-methyl (2S,4S)-4-cyano-1,2-pyrrolidinedicarboxylate487048-28-251 % similar 1-(1,1-Dimethylethyl) 4-methyl 1,4-piperidinedicarboxylate124443-68-150 % 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 1,2-Bis(1,1-dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate166410-05-548 % similar 3-tert-Butyl 4-methyl (4S)-2,2-dimethyl-1,3-oxazolidine-3,4-dicarboxylate108149-60-647 % similar 1-(1,1-Dimethylethyl) 2-methyl (2S)-5-oxo-1,2-pyrrolidinedicarboxylate108963-96-847 % similar Methyl N-boc-piperidine-3-carboxylate148763-41-147 % similar (R)-Methyl-3-(tert-butoxycarbonyl)-2,2-dimethyl-4-oxazolidinecarboxylate95715-86-947 % similar N-(tert-Butoxycarbonyl)-2,5-dihydro-1H-pyrrole73286-70-146 % 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 1,1-Dimethylethyl (2S)-2-formyl-1-pyrrolidinecarboxylate69610-41-942 % similar N-(tert-Butoxycarbonyl)-D-prolinal73365-02-342 % similar