Nielsen H, Lefèvre J P, Schröder R. "Method for the Synthesis of 2-Methyl-2H-indazole-3-carbaldehyde" [P]. European Patent, EP 3218826 A1, 2018-11-28.
发明人何建平,罗永刚,郑宇鹏. "A Process for Preparing High-Purity 2-Methyl-2H-indazole-3-carbaldehyde" [P]. 中国发明专利, 专利号 CN 114851719 B, 授权公告日 2018-03-21.
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