发明人赵玉洁,胡光,林芳. "Method for the Synthesis of Benidipine Impurity 12" [P]. 中国发明专利, 专利号 CN 114451035 B, 授权公告日 2017-01-26.
发明人罗永刚,高志强,徐明华. "A Process for Preparing High-Purity Benidipine Impurity 12" [P]. 中国发明专利, 专利号 CN 115464504 A, 授权公告日 2018-11-21.
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