发明人杨光,周伟,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117199578 A, 授权公告日 2016-04-27.
发明人杨光,李文辉,陈志强. "Method for the Synthesis of 2-Chloro-6,6-dioxo-5h,7h,8h-6lambda6-thiopyrano[4,3-b]pyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 111489124 B, 授权公告日 2021-06-23.
发明人徐明华,赵玉洁,郑宇鹏. "A Process for Preparing High-Purity 2-Chloro-6,6-dioxo-5h,7h,8h-6lambda6-thiopyrano[4,3-b]pyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 110821461 A, 授权公告日 2025-08-28.
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