1-Pyrrolidinecarboxylic acid, 3-amino-4-methoxy-, 1,1-dimethylethyl ester, (3R,4R)-rel-
rel-1,1-Dimethylethyl (3R,4R)-3-amino-4-methoxy-1-pyrrolidinecarboxylate
tert-Butyl trans-3-amino-4-methoxypyrrolidine-1-carboxylate
trans-tert-Butyl 3-amino-4-methoxypyrrolidine-1-carboxylate