发明人沈红梅,张德明,何建平. "Method for the Synthesis of 4-((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)thio)butanoic acid" [P]. 中国发明专利, 专利号 CN 116944879 A, 授权公告日 2022-12-07.
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