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(3R,4S)-tert-Butyl 3,4-dihydroxypyrrolidine-1-carboxylate186393-22-644 % similar tert-Butyl 6-hydroxy-2-azaspiro[3.3]heptane-2-carboxylate1147557-97-844 % similar (2S,4R)-tert-Butyl 2-(hydroxymethyl)-4-(methylsulfonyloxy)pyrrolidine-1-carboxylate148017-07-643 % similar 1-[(tert-Butoxy)carbonyl]azetidine-2-carboxylic acid159749-28-743 % similar Boc-D-azetidine-2-carboxylic acid228857-58-743 % similar 1-Boc-L-azetidine-2-carboxylic acid51077-14-643 % similar (1S,4S)-2-Boc-2,5-diazabicyclo[2.2.1]heptane113451-59-542 % similar tert-Butyl 2,5-diazabicyclo[2.2.1]heptane-2-carboxylate hydrochloride134003-84-242 % similar 1,1-Dimethylethyl 5-oxo-2-azabicyclo[2.2.1]heptane-2-carboxylate198835-06-242 % similar 2,5-Diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester198989-07-042 % similar tert-Butyl 4-hydroxyazepane-1-carboxylate478832-21-242 % similar tert-Butyl 3-((methoxycarbonyl)methyl) azetidine-1-carboxylate497160-14-242 % similar Rel-1,1-Dimethylethyl (3R,4R)-3-fluoro-4-hydroxy-1-pyrrolidinecarboxylate869481-93-642 % similar Methyl 3-hydroxycyclobutanecarboxylate4934-99-042 % similar 1-(1,1-Dimethylethyl) 2-borono-1-pyrrolidinecarboxylate149682-75-741 % similar Boc-L-proline15761-39-441 % similar (2R)-1-[(tert-Butoxy)carbonyl]pyrrolidine-2-carboxylic acid37784-17-141 % similar 1-[(tert-Butoxy)carbonyl]pyrrolidine-2-carboxylic acid59433-50-041 % similar 1-(1,1-Dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate84348-37-841 % similar 1-(tert-Butoxycarbonyl)-4-oxopyrrolidine-2-carboxylic acid876317-19-041 % similar