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tert-Butyl N-(azetidin-3-ylmethyl)carbamate91188-15-740 % similar tert-Butyl methylcarbamate16066-84-539 % similar N-Boc-cis-4-hydroxy-L-proline methyl ester102195-79-939 % similar (2R,4R)-4-Hydroxy-pyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester114676-69-639 % similar 1-tert-Butyl 2-methyl (2S,4R)-4-aminopyrrolidine-1,2-dicarboxylate121148-00-339 % similar 1-tert-Butyl 3-methyl piperazine-1,3-dicarboxylate129799-08-239 % similar 1-(1,1-Dimethylethyl) 2-methyl 1,2-piperazinedicarboxylate129799-15-139 % similar 1-tert-Butyl 2-methyl (2R,4S)-4-hydroxypyrrolidine-1,2-dicarboxylate135042-17-039 % similar N-Boc-beta-phenyl-L-phenylalaninol155836-47-839 % similar Boc-D-alg(boc)2-oh1931922-99-439 % similar 1-(1,1-Dimethylethyl) 2-methyl (2S,4S)-4-fluoro-1,2-pyrrolidinedicarboxylate203866-16-439 % similar (2S,4R)-1-tert-Butyl 2-methyl 4-fluoropyrrolidine-1,2-dicarboxylate203866-18-639 % similar 1-tert-Butyl 2-methyl (2R,4S)-4-aminopyrrolidine-1,2-dicarboxylate254881-77-139 % similar 1-(1,1-Dimethylethyl) 3-methyl (3S)-1,3-piperazinedicarboxylate314741-39-439 % similar 1-(1,1-Dimethylethyl) 3-methyl (3R)-1,3-piperazinedicarboxylate438631-77-739 % similar tert-Butyl N-[(2S)-1-oxo-3-phenylpropan-2-yl]carbamate72155-45-439 % similar (2S,4R)-4-Hydroxypyrrolidine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester74844-91-039 % similar (R)-(+)-2-(tert-Butoxycarbonylamino)-3-phenylpropanal77119-85-839 % similar (S)-1-N-Boc-piperazine-2-carboxylic acid methyl ester796096-64-539 % similar O-tert-Butyl-L-serine methyl ester hydrochloride17114-97-539 % similar