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发明人赵玉洁,马晓峰,黄志刚. "Method for the Synthesis of 1-(2-Chloro-4-methylphenyl)-3-(2-((6-methylpyridazin-3-yl)amino)ethyl)urea" [P]. 中国发明专利, 专利号 CN 114902889 A, 授权公告日 2017-04-08.
发明人杨光,陈志强,赵玉洁. "A Process for Preparing High-Purity 1-(2-Chloro-4-methylphenyl)-3-(2-((6-methylpyridazin-3-yl)amino)ethyl)urea" [P]. 中国发明专利, 专利号 CN 115497127 B, 授权公告日 2015-07-23.
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