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发明人刘建华,周伟,唐晓军. "Method for the Synthesis of 5,6-Dimethylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione" [P]. 中国发明专利, 专利号 CN 108848524 A, 授权公告日 2023-07-27.
发明人高志强,何建平,郭海燕. "A Process for Preparing High-Purity 5,6-Dimethylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione" [P]. 中国发明专利, 专利号 CN 112394859 A, 授权公告日 2024-07-28.
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