英文别名1,3-Pyrrolidinedicarboxylic acid, 4-ethyl-, 1-(phenylmethyl) ester, (3R,4S)-; (3R,4S)-1-[(benzyloxy)carbonyl]-4-ethylpyrrolidine-3-carboxylic acid; rel-(3R,4S)-1-[(Benzyloxy)carbonyl]-4-ethylpyrrolidine-3-carboxylic acid; (3R,4S)-4-ethyl-1-phenylmethoxycarbonylpyrrolidine-3-carboxylic acid; cis-1-benzyloxycarbonyl-4-ethyl-pyrrolidine-3-carboxylic acid; (3R,4S)-1-Cbz-4-ethylpyrrolidine-3-carboxylic Acid; cis-1-Cbz-4-ethylpyrrolidine-3-carboxylic Acid; (3R,4S)-1-benzyloxycarbonyl-4-ethyl-pyrrolidine-3-carboxylic acid; 1-(Phenylmethyl) (3R,4S)-4-ethyl-1,3-pyrrolidinedicarboxylate; rel-1-(Phenylmethyl) (3R,4S)-4-ethyl-1,3-pyrrolidinedicarboxylate; 1-[(Benzyloxy)carbonyl]-4-ethylpyrrolidine-3-carboxylic acid, (3R,4S)-; rac-(3R,4S)-1-[(BenZyloxy)carbonyl]-4-ethylpyrrolidine-3-carboxylic acid; 1,3-Pyrrolidinedicarboxylic acid, 4-ethyl-, 1-(phenylmethyl) ester, (3R,4S)-rel-; 1-[(Benzyloxy)carbonyl]-4-ethylpyrrolidine-3-carboxylic acid, (3R,4S)-rel-; ABT-494 intermediate; Upadacitinib Impurity 1; (3R,4S)-4-ethyl-1,3-Pyrrolidinedicarboxylic acid 1-(phenylmethyl) ester 
