发明人张德明,刘建华,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115982158 A, 授权公告日 2020-11-12.
发明人郑宇鹏,张德明,朱建伟. "Method for the Synthesis of ethyl 2,2-difluoro-2-(6-fluoro-1H-indazol-5-yl)acetate" [P]. 中国发明专利, 专利号 CN 110308244 A, 授权公告日 2024-07-13.
发明人徐明华,刘建华,马晓峰. "A Process for Preparing High-Purity ethyl 2,2-difluoro-2-(6-fluoro-1H-indazol-5-yl)acetate" [P]. 中国发明专利, 专利号 CN 117897411 B, 授权公告日 2020-01-16.
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