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Azetidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester255882-72-540 % similar Boc-N-methyl-L-isoleucine52498-32-540 % similar 1-(1,1-Dimethylethyl) 2-borono-1-pyrrolidinecarboxylate149682-75-740 % similar tert-Butyl (2R,5S)-2,5-dimethylpiperazine-1-carboxylate309915-46-640 % similar (2S,5R)-2,5-Dimethyl-piperazine-1-carboxylic acid tert-butyl ester548762-66-940 % similar 1-N-Boc-3-hydroxyazetidine141699-55-040 % similar (3R,4S)-tert-Butyl 3,4-dihydroxypyrrolidine-1-carboxylate186393-22-640 % similar (2S,4R)-tert-Butyl 2-(hydroxymethyl)-4-(methylsulfonyloxy)pyrrolidine-1-carboxylate148017-07-639 % similar 4-[(1,1-Dimethylethoxy)carbonyl]-α-phenyl-1-piperazineacetic acid347186-49-639 % similar 1-tert-Butyl 2-methyl (2S)-4-oxopyrrolidine-1,2-dicarboxylate102195-80-239 % similar 3-(1-((tert-Butoxy)carbonyl)piperidin-4-yl)propanoic acid154775-43-639 % similar tert-Butyl (3R)-3-(hydroxymethyl)morpholine-4-carboxylate215917-99-039 % similar (R)-1-tert-Butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate256487-77-139 % similar Boc-L-pro-ome59936-29-739 % similar (S)-tert-Butyl 3-(hydroxymethyl)morpholine-4-carboxylate714971-28-539 % similar Boc-D-pro-ome73323-65-639 % similar tert-Butyl 3-methoxyazetidine-1-carboxylate429669-07-839 % similar N-Boc-N-methyl-S-trityl-L-cysteine91292-54-539 % similar (1r,3r)-3-(((tert-Butoxy)carbonyl)amino)cyclobutane-1-carboxylic acid1008773-79-238 % similar 1,2-Bis(1,1-dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate166410-05-538 % similar