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tert-Butyl (2R,5S)-2,5-dimethylpiperazine-1-carboxylate309915-46-638 % similar (2R)-1-[(tert-Butoxy)carbonyl]pyrrolidine-2-carboxylic acid37784-17-138 % similar (2S,5R)-2,5-Dimethyl-piperazine-1-carboxylic acid tert-butyl ester548762-66-938 % similar (R)-tert-Butyl 2-(methoxymethyl)pyrrolidine-1-carboxylate578741-10-338 % similar 1-[(tert-Butoxy)carbonyl]pyrrolidine-2-carboxylic acid59433-50-038 % similar D-1-N-Boc-prolinamide70138-72-638 % 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 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 tert-Butyl (2S)-2-(hydroxymethyl)azetidine-1-carboxylate161511-85-938 % similar tert-Butyl 2-(hydroxymethyl)azetidine-1-carboxylate174346-82-838 % similar (2S,4R)-tert-Butyl 2-(hydroxymethyl)-4-(methylsulfonyloxy)pyrrolidine-1-carboxylate148017-07-638 % similar 1-(1,1-Dimethylethyl) (2S)-4,4-dimethyl-1,2-pyrrolidinedicarboxylate1001353-87-238 % similar tert-Butyl (3S,4R)-3-fluoro-4-hydroxypiperidine-1-carboxylate1174020-40-638 % similar 1,1-Dimethylethyl (3R,4S)-3-fluoro-4-hydroxy-1-piperidinecarboxylate1174020-42-838 % similar 1-[(tert-Butoxy)carbonyl]piperidine-2-carboxylic acid118552-55-938 % similar