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tert-Butyl piperazine-1-carboxylate57260-71-656 % similar 1-Boc-pyrrolidine-2,4-dione182352-59-656 % similar 1-(tert-Butoxycarbonyl)-3-(cyanomethylene)azetidine1153949-11-156 % similar tert-Butyl 2-oxo-6-azaspiro[3.4]octane-6-carboxylate203661-71-656 % similar tert-Butyl 3-bromoazetidine-1-carboxylate1064194-10-055 % similar 3-Hydroxy-3-methyl-azetidine-1-carboxylic acid tert-butyl ester1104083-23-955 % similar 1-N-Boc-3-hydroxyazetidine141699-55-055 % similar 1-Boc-4-methylenepiperidine159635-49-155 % similar (3R,4S)-tert-Butyl 3,4-dihydroxypyrrolidine-1-carboxylate186393-22-655 % similar 1-Boc-3-(amino)azetidine193269-78-255 % similar tert-Butyl 3-iodoazetidine-1-carboxylate254454-54-155 % similar tert-Butyl 3-methylidenepyrrolidine-1-carboxylate114214-71-054 % similar 1,1-Dimethylethyl 2,6-diazaspiro[3.3]heptane-2-carboxylate1041026-70-353 % similar tert-Butyl 3-formylazetidine-1-carboxylate177947-96-553 % similar tert-Butyl 4,4-difluoropiperidine-1-carboxylate281652-10-653 % similar tert-Butyl 3-methoxyazetidine-1-carboxylate429669-07-853 % similar Boc-N-ethyl glycine149794-10-553 % similar 1-Boc-3-oxopiperazine76003-29-753 % similar 3-Oxo-1-oxa-8-aza-spiro[4.5]decane-8-carboxylic acid tert-butyl ester954236-44-353 % similar tert-Butyl 4-hydroxypiperidine-1-carboxylate109384-19-251 % similar