发明人张德明,赵玉洁,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114329938 A, 授权公告日 2017-05-15.
Roberts E F, Williams B T, Park J H. "Method for the Synthesis of 2-((4-Butyl-8-methyl-2-oxo-2h-chromen-7-yl)oxy)propanoic acid" [P]. US Patent, US 11453635 B2, 2016-09-19.
发明人郑宇鹏,林芳,罗永刚. "A Process for Preparing High-Purity 2-((4-Butyl-8-methyl-2-oxo-2h-chromen-7-yl)oxy)propanoic acid" [P]. 中国发明专利, 专利号 CN 109000879 A, 授权公告日 2016-01-13.
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