发明人韩伟,郭海燕,徐明华. "Method for the Synthesis of 3-Bromo-4-hydroxy-6-methylthieno[2,3-d]pyridazin-7(6H)-one" [P]. 中国发明专利, 专利号 CN 112931080 A, 授权公告日 2022-11-24.
发明人杨光,徐明华,韩伟. "A Process for Preparing High-Purity 3-Bromo-4-hydroxy-6-methylthieno[2,3-d]pyridazin-7(6H)-one" [P]. 中国发明专利, 专利号 CN 110552275 A, 授权公告日 2023-02-11.
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