发明人林芳,杨光,朱建伟. "Method for the Synthesis of N-(3,4-Difluorophenyl)-N-(3-methyl-1-phenyl-1H-pyrazol-5-yl)urea" [P]. 中国发明专利, 专利号 CN 114626929 B, 授权公告日 2020-02-14.
发明人沈红梅,杨光,高志强. "A Process for Preparing High-Purity N-(3,4-Difluorophenyl)-N-(3-methyl-1-phenyl-1H-pyrazol-5-yl)urea" [P]. 中国发明专利, 专利号 CN 111545786 A, 授权公告日 2019-01-17.
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