发明人韩伟,杨光,唐晓军. "Method for the Synthesis of 7-Ethoxy-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113404972 B, 授权公告日 2016-12-11.
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