发明人朱建伟,冯建国,郭海燕. "Method for the Synthesis of Ornidazole Impurity 27" [P]. 中国发明专利, 专利号 CN 111958131 B, 授权公告日 2021-12-16.
发明人黄志刚,韩伟,张德明. "A Process for Preparing High-Purity Ornidazole Impurity 27" [P]. 中国发明专利, 专利号 CN 109920919 B, 授权公告日 2017-04-08.
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