发明人张德明,王建平,刘建华. "Method for the Synthesis of 3-(methanesulfinylmethyl)-1-benzofuran-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108211999 B, 授权公告日 2020-03-05.
发明人王建平,刘建华,唐晓军. "A Process for Preparing High-Purity 3-(methanesulfinylmethyl)-1-benzofuran-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115213837 B, 授权公告日 2020-02-22.
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