发明人马晓峰,韩伟,杨光. "Method for the Synthesis of 7-chloro-2-ethyl-4,4-dioxo-1,2,3-trihydro-4-thiaquinazoline-6-sulfonamide" [P]. 中国发明专利, 专利号 CN 108749474 A, 授权公告日 2018-07-15.
发明人李文辉,罗永刚,马晓峰. "A Process for Preparing High-Purity 7-chloro-2-ethyl-4,4-dioxo-1,2,3-trihydro-4-thiaquinazoline-6-sulfonamide" [P]. 中国发明专利, 专利号 CN 109870687 B, 授权公告日 2022-03-22.
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