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发明人刘建华,林芳,孙丽萍. "Method for the Synthesis of 7-Bromo-2,3-dihydrothieno[3,4-b][1,4]dioxine-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114559425 B, 授权公告日 2017-01-05.
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