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(S)-1-N-Boc-piperazine-2-carboxylic acid methyl ester796096-64-559 % similar N-Boc-3,4-dehydro-L-proline methyl ester74844-93-258 % similar (2S,4S)-1-tert-Butyl 2-methyl 4-aminopyrrolidine-1,2-dicarboxylate hydrochloride171110-72-855 % similar 1-tert-Butyl 2-methyl (2S,4R)-4-aminopyrrolidine-1,2-dicarboxylate hydrochloride334999-32-555 % similar 1-(1,1-Dimethylethyl) 2-methyl (2S,4S)-4-cyano-1,2-pyrrolidinedicarboxylate487048-28-255 % similar 3-tert-Butyl 4-methyl (4S)-2,2-dimethyl-1,3-oxazolidine-3,4-dicarboxylate108149-60-654 % similar 1-(1,1-Dimethylethyl) 2-methyl (2S)-5-oxo-1,2-pyrrolidinedicarboxylate108963-96-854 % similar (R)-Methyl-3-(tert-butoxycarbonyl)-2,2-dimethyl-4-oxazolidinecarboxylate95715-86-954 % similar tert-Butyl (2S)-4-oxo-2-(1,3-thiazolidin-3-yl carbonyl)pyrrolidine-1-carboxylate401564-36-154 % similar 1-tert-Butyl 3-methyl azetidine-1,3-dicarboxylate610791-05-453 % similar 1-(1,1-Dimethylethyl) 4-methyl 1,4-piperidinedicarboxylate124443-68-151 % similar 1-tert-Butyl 3-methyl pyrrolidine-1,3-dicarboxylate122684-33-749 % similar (S)-1-Boc-pyrrolidine-3-carboxylic acid methyl ester313706-15-949 % similar 1-tert-Butyl 3-methyl (3R)-pyrrolidine-1,3-dicarboxylate441717-40-449 % similar Methyl N-boc-piperidine-3-carboxylate148763-41-148 % similar (S)-4-Methylene-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester84348-38-948 % similar tert-Butyl 2-methyl-4-oxopiperidine-1-carboxylate190906-92-448 % similar 1-Piperidinecarboxylicacid,2-methyl-4-oxo-,1,1-dimethylethylester,(2R)-(9ci)790667-43-548 % similar 3-Oxo-azetidine-1-carboxylic acid tert-butyl ester398489-26-448 % similar 1-tert-Butyl 3-methyl piperazine-1,3-dicarboxylate129799-08-246 % similar