发明人韩伟,胡光,李文辉. "Method for the Synthesis of Ethyl 7-methyl-1H-indazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 108373675 B, 授权公告日 2020-12-06.
发明人何建平,沈红梅,郭海燕. "A Process for Preparing High-Purity Ethyl 7-methyl-1H-indazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 116490250 A, 授权公告日 2020-11-11.
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