发明人杨光,张德明,朱建伟. "一种4-氨基-7-氯苯并噻吩-2-甲酸甲酯的合成方法" [P]. 中国发明专利, 专利号 CN 111635914 A, 授权公告日 2016-02-08.
发明人高志强,冯建国,马晓峰. "Method for the Synthesis of Methyl 4-Amino-7-chlorobenzothiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 113161123 A, 授权公告日 2017-10-14.
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