发明人高志强,钱学锋,孙丽萍. "Method for the Synthesis of 4-(4-Ethylphenyl)-3,4-dihydrofuro[3,4-d]pyrimidine-2,5(1H,7H)-dione" [P]. 中国发明专利, 专利号 CN 117942488 B, 授权公告日 2015-04-13.
发明人沈红梅,陈志强,朱建伟. "A Process for Preparing High-Purity 4-(4-Ethylphenyl)-3,4-dihydrofuro[3,4-d]pyrimidine-2,5(1H,7H)-dione" [P]. 中国发明专利, 专利号 CN 110539902 A, 授权公告日 2022-05-08.
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