发明人林芳,冯建国,陈志强. "Method for the Synthesis of 3-(3-Chloro-5H-benzo[b]pyridazino[4,3-e][1,4]oxazin-5-yl)-N,N-dimethylpropan-1-amine dihydrochloride" [P]. 中国发明专利, 专利号 CN 115095974 A, 授权公告日 2024-01-27.
发明人郑宇鹏,唐晓军,孙丽萍. "A Process for Preparing High-Purity 3-(3-Chloro-5H-benzo[b]pyridazino[4,3-e][1,4]oxazin-5-yl)-N,N-dimethylpropan-1-amine dihydrochloride" [P]. 中国发明专利, 专利号 CN 112161244 A, 授权公告日 2016-06-08.
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