发明人刘建华,罗永刚,李文辉. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109445884 A, 授权公告日 2021-09-25.
发明人张德明,林芳,钱学锋. "Method for the Synthesis of 1h-Indazole-4-carboxamide" [P]. 中国发明专利, 专利号 CN 113569873 A, 授权公告日 2016-01-22.
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