发明人冯建国,马晓峰,杨光. "Method for the Synthesis of 7,7-difluoro-2-methylsulfanyl-5,6-dihydrocyclopenta[d]pyrimidine-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 117843109 B, 授权公告日 2023-05-24.
发明人李文辉,沈红梅,杨光. "A Process for Preparing High-Purity 7,7-difluoro-2-methylsulfanyl-5,6-dihydrocyclopenta[d]pyrimidine-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 116154012 A, 授权公告日 2023-11-04.
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