英文别名Lifitegrast Intermediate 3; (S)-benzyl 2-(5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate hydrochloride; Lifitegrast Impurity 4; benzyl (S)-2-(5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxamido)-3-(3-(methylsulfonyl)phenyl)propanoate hydrochloride; Lifitegrast Impurity 2 HCl; Lifitegrast RC3