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3-Ethynyl-1-azetidinecarboxylic acid tert-butyl ester287193-01-5100 % similar 1-Boc-4-ethynylpiperidine287192-97-672 % similar 1-Boc-3-cyanoazetidine142253-54-167 % similar tert-Butyl 3-bromoazetidine-1-carboxylate1064194-10-063 % similar tert-Butyl 6-Oxa-3-azabicyclo(3.1.0)hexane-3-carboxylate114214-49-260 % similar 1-N-Boc-3-hydroxyazetidine141699-55-058 % similar (3R,4S)-tert-Butyl 3,4-dihydroxypyrrolidine-1-carboxylate186393-22-658 % similar 1-Boc-3-(amino)azetidine193269-78-258 % similar tert-Butyl 3-iodoazetidine-1-carboxylate254454-54-158 % similar tert-Butyl 3-formylazetidine-1-carboxylate177947-96-557 % similar tert-Butyl 3-methoxyazetidine-1-carboxylate429669-07-857 % similar (R)-1-Boc-3-cyanopyrrolidine132945-76-756 % similar (S)-1-Boc-3-cyanopyrrolidine132945-78-956 % similar 1-Boc-3-cyanopyrrolidine476493-40-056 % similar Hexahydropyrrolo[3,4-c]pyrrole-2-carboxylic acid tert-butyl ester141449-85-655 % similar 1-Boc-azetidine-3-ylmethanol142253-56-355 % similar cis-tert-Butyl 5-oxohexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate146231-54-155 % similar N-Boc-hexahydro-5-oxocyclopenta[C]pyrrole148404-28-855 % similar 1,1-Dimethylethyl 3,8-diazabicyclo[3.2.1]octane-3-carboxylate201162-53-055 % similar cis-2-Boc-hexahydropyrrolo[3,4-C]pyrrole250275-15-155 % similar