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3-Bromo-4-oxo-piperidine-1-carboxylic acid tert-butyl ester188869-05-838 % similar tert-Butyl 3-fluoro-4-oxopiperidine-1-carboxylate211108-50-838 % similar 1-(1,1-Dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate84348-37-838 % similar 1-(tert-Butoxycarbonyl)-4-oxopyrrolidine-2-carboxylic acid876317-19-038 % similar tert-Butyl 3-bromoazetidine-1-carboxylate1064194-10-038 % similar 3-Hydroxy-3-methyl-azetidine-1-carboxylic acid tert-butyl ester1104083-23-938 % similar N-Boc-(methylamino)acetaldehyde123387-72-438 % similar 1-N-Boc-3-hydroxyazetidine141699-55-038 % similar (3R,4S)-tert-Butyl 3,4-dihydroxypyrrolidine-1-carboxylate186393-22-638 % similar 1-Boc-3-(amino)azetidine193269-78-238 % similar tert-Butyl 3-iodoazetidine-1-carboxylate254454-54-138 % similar N-(tert-Butoxycarbonyl)iminodiacetic Acid56074-20-538 % similar 1-(1,1-Dimethylethyl) 2-ethyl (2S)-5-oxo-1,2-pyrrolidinedicarboxylate144978-12-138 % similar 1-Boc-D-pyroglutamic acid ethyl ester144978-35-838 % similar (S)-3-Hydroxypyrrolidine-1-carboxylic acid tert-butyl ester101469-92-538 % similar 3-Hydroxypyrrolidine-1-carboxylic acid tert-butyl ester103057-44-938 % similar tert-Butyl (3R)-3-hydroxypyrrolidine-1-carboxylate109431-87-038 % similar N-Boc-4-piperidinemethanol123855-51-638 % similar 1-Boc-4-(aminomethyl)piperidine144222-22-038 % similar 1,1-Dimethylethyl N-(4-aminobutyl)-N-methylcarbamate144222-23-138 % similar