英文别名Lifitegrast Impurity 1; 2(1H)-Isoquinolinecarboxylic acid, 5,7-dichloro-3,4-dihydro-6-[[[(1S)-1-[[3-(methylsulfonyl)phenyl]methyl]-2-oxo-2-(phenylmethoxy)ethyl]amino]carbonyl]-, 1,1-dimethylethyl ester; (S)-tert-butyl 6-((1-(benzyloxy)-3-(3-(methylsulfonyl)phenyl)-1-oxopropan-2-yl)carbamoyl)-5,7-dichloro-3,4-dihydroisoquinoline-2(1H)-carboxylate; 1,1-Dimethylethyl 5,7-dichloro-3,4-dihydro-6-[[[(1S)-1-[[3-(methylsulfonyl)phenyl]methyl]-2-oxo-2-(phenylmethoxy)ethyl]amino]carbonyl]-2(1H)-isoquinolinecarboxylate; Lifitegrast Impurity 30; Lifitegrast RC6; Litakast Impurity 19; Ritastal impurities 
