发明人李文辉,周伟,罗永刚. "Method for the Synthesis of Methyl 4-((2-amino-4-(trifluoromethyl)phenyl)amino)butanoate" [P]. 中国发明专利, 专利号 CN 109704690 B, 授权公告日 2022-11-01.
Fischer A B, Chen K W, Williams B T. "A Process for Preparing High-Purity Methyl 4-((2-amino-4-(trifluoromethyl)phenyl)amino)butanoate" [P]. US Patent, US 11239214 B2, 2018-04-06.
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