发明人孙丽萍,冯建国,李文辉. "Method for the Synthesis of 4-(3,4-Dimethoxyphenyl)-3-ethyl-1-methyl-1H-pyrazol-5-amine" [P]. 中国发明专利, 专利号 CN 110209529 B, 授权公告日 2018-09-03.
发明人赵玉洁,马晓峰,周伟. "A Process for Preparing High-Purity 4-(3,4-Dimethoxyphenyl)-3-ethyl-1-methyl-1H-pyrazol-5-amine" [P]. 中国发明专利, 专利号 CN 114422765 A, 授权公告日 2020-11-20.
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