发明人冯建国,刘建华,郭海燕. "Method for the Synthesis of 1-(2-Chloroethyl)-3-(3,5-difluorophenyl)urea" [P]. 中国发明专利, 专利号 CN 112183471 B, 授权公告日 2017-05-15.
发明人张德明,罗永刚,胡光. "A Process for Preparing High-Purity 1-(2-Chloroethyl)-3-(3,5-difluorophenyl)urea" [P]. 中国发明专利, 专利号 CN 117189140 B, 授权公告日 2024-11-11.
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