发明人唐晓军,冯建国,周伟. "Method for the Synthesis of Furosemide Impurity 22" [P]. 中国发明专利, 专利号 CN 116594561 A, 授权公告日 2021-07-22.
发明人张德明,郑宇鹏,马晓峰. "A Process for Preparing High-Purity Furosemide Impurity 22" [P]. 中国发明专利, 专利号 CN 116309782 A, 授权公告日 2019-08-20.
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