发明人赵玉洁,胡光,韩伟. "Method for the Synthesis of Clevidipine butyrate Impurity 9" [P]. 中国发明专利, 专利号 CN 108350860 A, 授权公告日 2020-11-13.
Nielsen H, Björnsson E, Mueller T C. "A Process for Preparing High-Purity Clevidipine butyrate Impurity 9" [P]. European Patent, EP 3957421 A1, 2015-04-26.
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