发明人何建平,郭海燕,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117123358 A, 授权公告日 2021-06-17.
发明人张德明,胡光,林芳. "Method for the Synthesis of 4-Nitro-1H-indol-6-ol" [P]. 中国发明专利, 专利号 CN 115390013 A, 授权公告日 2021-07-04.
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