发明人赵玉洁,周伟,林芳. "Method for the Synthesis of 2-Cyclopropylidenepropanoic acid" [P]. 中国发明专利, 专利号 CN 114342893 A, 授权公告日 2016-03-15.
发明人刘建华,何建平,孙丽萍. "A Process for Preparing High-Purity 2-Cyclopropylidenepropanoic acid" [P]. 中国发明专利, 专利号 CN 117317466 A, 授权公告日 2018-01-02.
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