发明人何建平,郑宇鹏,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115647789 A, 授权公告日 2015-02-06.
发明人郭海燕,朱建伟,王建平. "Method for the Synthesis of N-[3-Cyano-4-(2-thienyl)-4H-benzo[h]chromen-2-yl]-N,N-dimethyliminoformamide" [P]. 中国发明专利, 专利号 CN 112261660 B, 授权公告日 2018-03-12.
发明人郑宇鹏,徐明华,罗永刚. "A Process for Preparing High-Purity N-[3-Cyano-4-(2-thienyl)-4H-benzo[h]chromen-2-yl]-N,N-dimethyliminoformamide" [P]. 中国发明专利, 专利号 CN 109535509 A, 授权公告日 2025-02-25.
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