发明人胡光,韩伟,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109593074 A, 授权公告日 2024-04-19.
发明人王建平,郭海燕,钱学锋. "Method for the Synthesis of 1-(2-Ethoxyphenyl)-3-(1-ethyl-1H-indol-3-yl)urea" [P]. 中国发明专利, 专利号 CN 117022955 A, 授权公告日 2025-12-26.
发明人冯建国,何建平,陈志强. "A Process for Preparing High-Purity 1-(2-Ethoxyphenyl)-3-(1-ethyl-1H-indol-3-yl)urea" [P]. 中国发明专利, 专利号 CN 116842191 A, 授权公告日 2018-03-01.
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