发明人赵玉洁,韩伟,钱学锋. "Method for the Synthesis of Lifitegrast Impurity 39" [P]. 中国发明专利, 专利号 CN 115783580 A, 授权公告日 2017-05-04.
发明人郭海燕,孙丽萍,郑宇鹏. "A Process for Preparing High-Purity Lifitegrast Impurity 39" [P]. 中国发明专利, 专利号 CN 110921998 A, 授权公告日 2016-11-17.
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