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tert-Butyl 3-bromoazetidine-1-carboxylate1064194-10-038 % similar 1-Boc-3-(amino)azetidine193269-78-238 % similar tert-Butyl 3-iodoazetidine-1-carboxylate254454-54-138 % similar (2S,4R)-Fmoc-4-amino-1-boc-pyrrolidine-2-carboxylic acid176486-63-838 % similar N-Boc-cis-4-hydroxy-L-proline methyl ester102195-79-938 % similar (2R,4R)-4-Hydroxy-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester114676-69-638 % similar 1-(1,1-Dimethylethyl) 2-methyl 1,2-piperazinedicarboxylate129799-15-138 % similar 1-tert-Butyl 2-methyl (2R,4S)-4-hydroxypyrrolidine-1,2-dicarboxylate135042-17-038 % similar (2S,4R)-4-Hydroxypyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester74844-91-038 % similar (S)-1-N-Boc-piperazine-2-carboxylic acid methyl ester796096-64-538 % 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 1-Boc-4-methylaminopiperidine147539-41-138 % similar tert-Butyl trans-3-hydroxymethylcyclobutylcarbamate167081-37-038 % similar Boc-N-methyl-L-alanine16948-16-638 % similar Boc-N-methyl-D-alanine19914-38-638 % similar 1-(tert-Butoxycarbonyl)-4-(2-hydroxyethyl)piperidine89151-44-038 % similar 1,1-Dimethylethyl (2S)-2-(phenylmethyl)-1-piperazinecarboxylate169447-86-338 % similar 1,1-Dimethylethyl 2-(phenylmethyl)-1-piperazinecarboxylate481038-63-538 % similar