发明人王建平,朱建伟,赵玉洁. "Method for the Synthesis of 2-methyl-2H-indazole-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112039926 B, 授权公告日 2017-01-13.
Nielsen H, Rossi M, Jørgensen K. "A Process for Preparing High-Purity 2-methyl-2H-indazole-5-carboxylic acid" [P]. European Patent, EP 3556915 A1, 2018-01-03.
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