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Rel-1,1-Dimethylethyl (3R,4R)-3-fluoro-4-hydroxy-1-pyrrolidinecarboxylate869481-93-635 % similar 1-Boc-2-piperazinecarboxylic acid1214196-85-635 % similar 4-[(tert-Butoxy)carbonyl]piperazine-2-carboxylic acid128019-59-035 % similar (S)-Tetrahydropyridazine-1,2,3-tricarboxylic acid 1,2-di-tert-butyl ester156699-39-735 % similar 1,1-Dimethylethyl 3-oxo-2,8-diazaspiro[4.5]decane-8-carboxylate169206-67-135 % similar (2S,4S)-1-((tert-Butoxy)carbonyl)-4-fluoropyrrolidine-2-carboxylic acid203866-13-135 % similar (2S,4R)-1-[(tert-Butoxy)carbonyl]-4-fluoropyrrolidine-2-carboxylic acid203866-14-235 % similar (2S)-1-[(tert-Butoxy)carbonyl]-4,4-difluoropyrrolidine-2-carboxylic acid203866-15-335 % similar (R)-4-Boc-piperazine-3-carboxylic acid278788-60-635 % similar (1R,3S,4S)-2-(tert-Butoxycarbonyl)-2-azabicyclo(2.2.1)heptane-3-carboxylic acid291775-59-235 % similar 1,1-Dimethylethyl (1S,3S,5S)-3-(aminocarbonyl)-2-azabicyclo[3.1.0]hexane-2-carboxylate361440-67-735 % similar (2R,4S)-1-(tert-Butoxycarbonyl)-4-fluoropyrrolidine-2-carboxylic acid681128-50-735 % similar (2R,4R)-1-[(tert-Butoxy)carbonyl]-4-fluoropyrrolidine-2-carboxylic acid681128-51-835 % similar (S)-4-N-Boc-piperazine-2-carboxylic acid848482-93-935 % similar 1-Boc-4-(2-carboxyphenyl)piperazine444582-90-535 % similar Boc-MeTyr-OH82038-34-435 % similar 4-Benzyloxycarbonylamino-piperidine-1,4-dicarboxylic acid mono-tert-butyl ester288154-16-534 % similar N,O-Bis(tert-butoxycarbonyl)hydroxylamine85006-25-334 % similar tert-Butyl 1,4-diazepane-1-carboxylate112275-50-034 % similar tert-Butyl 3-methylidenepyrrolidine-1-carboxylate114214-71-034 % similar