for the following products
(2R,4S)-4-Amino-1-Boc-pyrrolidine-2-carboxylic acid methyl ester hydrochloride | 1,2-Pyrrolidinedicarboxylicacid, 4-amino-1-(1,1-dimethylethyl) 2-methyl ester, (2R,4S)- and (2R,4S)-1-tert-Butyl 2-methyl 4-aminopyrrolidine-1,2-dicarboxylate