发明人罗永刚,孙丽萍,李文辉. "Method for the Synthesis of Vinpocetine EP Impurity C" [P]. 中国发明专利, 专利号 CN 108803114 A, 授权公告日 2017-02-04.
发明人李文辉,张德明,孙丽萍. "A Process for Preparing High-Purity Vinpocetine EP Impurity C" [P]. 中国发明专利, 专利号 CN 117555689 B, 授权公告日 2021-12-12.
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