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发明人郭海燕,郑宇鹏,冯建国. "A Process for Preparing High-Purity 6,7-Dimethyl-3,4-dihydro-2H-pyrazino[2,3-b][1,4]thiazine" [P]. 中国发明专利, 专利号 CN 113628245 B, 授权公告日 2019-12-15.
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