发明人何建平,韩伟,冯建国. "Method for the Synthesis of Gadobutrol Impurity 190" [P]. 中国发明专利, 专利号 CN 115323404 B, 授权公告日 2020-11-16.
发明人朱建伟,赵玉洁,高志强. "A Process for Preparing High-Purity Gadobutrol Impurity 190" [P]. 中国发明专利, 专利号 CN 111102512 B, 授权公告日 2020-06-22.
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