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发明人冯建国,唐晓军,杨光. "Method for the Synthesis of 5,6,8-Trimethyl-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110439067 A, 授权公告日 2023-03-06.
发明人郑宇鹏,郭海燕,胡光. "A Process for Preparing High-Purity 5,6,8-Trimethyl-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113866781 A, 授权公告日 2021-08-07.
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