发明人赵玉洁,沈红梅,刘建华. "一种替匹嘧啶杂质7的合成方法" [P]. 中国发明专利, 专利号 CN 116427927 A, 授权公告日 2018-10-11.
发明人林芳,徐明华,杨光. "Method for the Synthesis of Tipiracil Impurity 7" [P]. 中国发明专利, 专利号 CN 108680104 A, 授权公告日 2016-02-25.
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