发明人沈红梅,李文辉,罗永刚. "一种德拉沙星杂质33的合成方法" [P]. 中国发明专利, 专利号 CN 111501834 A, 授权公告日 2021-05-04.
发明人张德明,高志强,郑宇鹏. "Method for the Synthesis of Delafloxacin impurity 33" [P]. 中国发明专利, 专利号 CN 112118376 A, 授权公告日 2018-04-19.
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