发明人张德明,周伟,赵玉洁. "Method for the Synthesis of Pinaverium impurity 25" [P]. 中国发明专利, 专利号 CN 110570448 A, 授权公告日 2020-03-12.
发明人冯建国,刘建华,杨光. "A Process for Preparing High-Purity Pinaverium impurity 25" [P]. 中国发明专利, 专利号 CN 116853626 B, 授权公告日 2025-04-26.
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