发明人郭海燕,胡光,王建平. "Method for the Synthesis of 7-Amino-5-methoxy-2-indolecarboxylic Acid" [P]. 中国发明专利, 专利号 CN 109348913 B, 授权公告日 2019-03-03.
发明人孙丽萍,韩伟,张德明. "A Process for Preparing High-Purity 7-Amino-5-methoxy-2-indolecarboxylic Acid" [P]. 中国发明专利, 专利号 CN 115555608 A, 授权公告日 2018-08-05.
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