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发明人林芳,钱学锋,冯建国. "Method for the Synthesis of 4-[(3,4-dihydro-2H-pyrrol-5-yl)amino]benzoic acid" [P]. 中国发明专利, 专利号 CN 115181635 A, 授权公告日 2019-02-09.
发明人李文辉,周伟,唐晓军. "A Process for Preparing High-Purity 4-[(3,4-dihydro-2H-pyrrol-5-yl)amino]benzoic acid" [P]. 中国发明专利, 专利号 CN 115387486 A, 授权公告日 2016-08-14.
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