发明人马晓峰,郭海燕,张德明. "Method for the Synthesis of 5-Nitroindazole-1-carboxylic acid tert-butyl ester" [P]. 中国发明专利, 专利号 CN 117634762 A, 授权公告日 2021-11-15.
发明人冯建国,郑宇鹏,刘建华. "A Process for Preparing High-Purity 5-Nitroindazole-1-carboxylic acid tert-butyl ester" [P]. 中国发明专利, 专利号 CN 109514869 A, 授权公告日 2020-12-28.
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