发明人李文辉,孙丽萍,胡光. "Method for the Synthesis of Methyl 5-bromo-4-chloro-3-hydroxythiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115364527 A, 授权公告日 2019-12-21.
Brown S R, Davis P L, Schröder R. "A Process for Preparing High-Purity Methyl 5-bromo-4-chloro-3-hydroxythiophene-2-carboxylate" [P]. US Patent, US 11215379 B2, 2016-02-17.
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