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1-tert-Butyl 2-methyl 4-oxopiperidine-1,2-dicarboxylate81357-18-8100 % similar 1-tert-Butyl 2-methyl (2S)-4-oxopyrrolidine-1,2-dicarboxylate102195-80-278 % similar (R)-1-tert-Butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate256487-77-178 % similar Azetidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester255882-72-569 % similar Boc-L-pro-ome59936-29-766 % similar Boc-D-pro-ome73323-65-666 % similar 1-tert-Butyl 2-methyl piperidine-1,2-dicarboxylate167423-93-064 % similar 1,2-Bis(1,1-dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate166410-05-563 % similar 1-(1,1-Dimethylethyl) 2-methyl 1,2-piperazinedicarboxylate129799-15-162 % similar (S)-1-N-Boc-piperazine-2-carboxylic acid methyl ester796096-64-562 % similar tert-Butyl 2-methyl-4-oxopiperidine-1-carboxylate190906-92-461 % similar 1-Piperidinecarboxylicacid,2-methyl-4-oxo-,1,1-dimethylethylester,(2R)-(9ci)790667-43-561 % similar N-Boc-cis-4-hydroxy-L-proline methyl ester102195-79-955 % similar (2R,4R)-4-Hydroxy-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester114676-69-655 % similar 1-tert-Butyl 2-methyl (2S,4R)-4-aminopyrrolidine-1,2-dicarboxylate121148-00-355 % similar 1-tert-Butyl 2-methyl (2R,4S)-4-hydroxypyrrolidine-1,2-dicarboxylate135042-17-055 % similar 1-(1,1-Dimethylethyl) 2-methyl (2S,4S)-4-fluoro-1,2-pyrrolidinedicarboxylate203866-16-455 % similar N-Boc-4,4-difluoro-L-proline methyl ester203866-17-555 % similar (2S,4R)-1-tert-Butyl 2-methyl 4-fluoropyrrolidine-1,2-dicarboxylate203866-18-655 % similar 1-tert-Butyl 2-methyl (2R,4S)-4-aminopyrrolidine-1,2-dicarboxylate254881-77-155 % similar