发明人唐晓军,郑宇鹏,何建平. "Method for the Synthesis of 2-((6-Oxo-7,8,9,10-tetrahydro-6h-benzo[c]chromen-3-yl)oxy)butanoic acid" [P]. 中国发明专利, 专利号 CN 117759408 A, 授权公告日 2016-03-10.
发明人郭海燕,徐明华,唐晓军. "A Process for Preparing High-Purity 2-((6-Oxo-7,8,9,10-tetrahydro-6h-benzo[c]chromen-3-yl)oxy)butanoic acid" [P]. 中国发明专利, 专利号 CN 114569175 A, 授权公告日 2015-11-28.
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