英文同义词
(3R,4R)-4-Methyl-1,3-pyrrolidinedicarboxylic acid 1-(1,1-dimethylethyl) 3-ethyl ester;trans-1-tert-butyl 3-ethyl 4-methylpyrrolidine-1,3-dicarboxylate;(3R,4R)-1-(TERT-BUTOXYCARBONYL)-4-METHYLPYRROLIDINE-3-CARBOXYLIC ACID ETHYL ESTER;1-tert-butyl 3-ethyl (3r,4r)-4-methylpyrrolidine-1,3-dicarboxylate