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发明人李文辉,郑宇鹏,张德明. "Method for the Synthesis of Trihexyphenidyl impurity 15" [P]. 中国发明专利, 专利号 CN 117628768 A, 授权公告日 2016-02-27.
发明人孙丽萍,林芳,朱建伟. "A Process for Preparing High-Purity Trihexyphenidyl impurity 15" [P]. 中国发明专利, 专利号 CN 112668646 B, 授权公告日 2017-11-05.
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