发明人孙丽萍,罗永刚,钱学锋. "Method for the Synthesis of Methyl 3-amino-6-nitrobenzo[b]thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 111818364 B, 授权公告日 2020-07-26.
发明人朱建伟,郑宇鹏,胡光. "A Process for Preparing High-Purity Methyl 3-amino-6-nitrobenzo[b]thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112352168 B, 授权公告日 2024-03-01.
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