发明人李文辉,罗永刚,王建平. "Method for the Synthesis of 4,7-Difluoro-1H-indole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 112973675 B, 授权公告日 2022-10-05.
发明人刘建华,郭海燕,高志强. "A Process for Preparing High-Purity 4,7-Difluoro-1H-indole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 114668514 A, 授权公告日 2017-02-26.
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