发明人冯建国,黄志刚,陈志强. "Method for the Synthesis of (S)-3-Amino-4-(difluoromethyl)-2-oxoindoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110299822 B, 授权公告日 2020-06-02.
发明人周伟,郑宇鹏,杨光. "A Process for Preparing High-Purity (S)-3-Amino-4-(difluoromethyl)-2-oxoindoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117335987 B, 授权公告日 2018-09-09.
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