发明人高志强,王建平,林芳. "Method for the Synthesis of 1-Cyclopropyl-6,8-difluoro-7-(3-hydroxyazetidin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110189901 B, 授权公告日 2022-06-14.
发明人张德明,何建平,赵玉洁. "A Process for Preparing High-Purity 1-Cyclopropyl-6,8-difluoro-7-(3-hydroxyazetidin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110624454 B, 授权公告日 2016-07-15.
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