发明人钱学锋,杨光,罗永刚. "Method for the Synthesis of 7-((2-Ethoxyethyl)thio)-1-(2-methoxyphenyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazine" [P]. 中国发明专利, 专利号 CN 109615561 B, 授权公告日 2025-08-09.
发明人孙丽萍,唐晓军,马晓峰. "A Process for Preparing High-Purity 7-((2-Ethoxyethyl)thio)-1-(2-methoxyphenyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazine" [P]. 中国发明专利, 专利号 CN 110063763 A, 授权公告日 2018-08-13.
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