发明人李文辉,韩伟,朱建伟. "Method for the Synthesis of Atracurium Impurity 119 HCl" [P]. 中国发明专利, 专利号 CN 110632978 B, 授权公告日 2025-08-28.
发明人孙丽萍,王建平,钱学锋. "A Process for Preparing High-Purity Atracurium Impurity 119 HCl" [P]. 中国发明专利, 专利号 CN 109368573 B, 授权公告日 2019-03-18.
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