发明人冯建国,唐晓军,张德明. "Method for the Synthesis of 3-Ethyl-4-oxo-2-sulfanyl-3,4-dihydroquinazoline-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115734598 B, 授权公告日 2022-08-21.
Roberts E F, O'Brien P Q, Davis P L. "A Process for Preparing High-Purity 3-Ethyl-4-oxo-2-sulfanyl-3,4-dihydroquinazoline-7-carboxylic acid" [P]. US Patent, US 11124545 B2, 2018-05-27.
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