发明人赵玉洁,胡光,陈志强. "Method for the Synthesis of (E)-5-chloro-3-(4-chlorobut-2-en-1-yl)benzo[d]oxazol-2(3H)-one" [P]. 中国发明专利, 专利号 CN 115271384 B, 授权公告日 2015-08-02.
发明人张德明,沈红梅,徐明华. "A Process for Preparing High-Purity (E)-5-chloro-3-(4-chlorobut-2-en-1-yl)benzo[d]oxazol-2(3H)-one" [P]. 中国发明专利, 专利号 CN 113811244 A, 授权公告日 2018-05-18.
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