发明人赵玉洁,周伟,韩伟. "Method for the Synthesis of 2-[(3,5-difluorobenzyl)thio]pyridinium-1-olate" [P]. 中国发明专利, 专利号 CN 109810446 B, 授权公告日 2021-03-20.
发明人孙丽萍,冯建国,李文辉. "A Process for Preparing High-Purity 2-[(3,5-difluorobenzyl)thio]pyridinium-1-olate" [P]. 中国发明专利, 专利号 CN 114094567 A, 授权公告日 2022-04-02.
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