发明人黄志刚,沈红梅,徐明华. "一种N/A的合成方法" [P]. 中国发明专利, 专利号 CN 117942307 A, 授权公告日 2017-12-25.
发明人冯建国,沈红梅,赵玉洁. "Method for the Synthesis of 6-(Trifluoromethyl)pyrido[3,2-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 109624857 A, 授权公告日 2015-10-14.
发明人徐明华,张德明,赵玉洁. "A Process for Preparing High-Purity 6-(Trifluoromethyl)pyrido[3,2-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 115713761 B, 授权公告日 2020-03-28.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of N/A in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2014, 490, (12), 9523-9548.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of N/A as an Impurity". Anal. Chem., 2014, 453, (8), 5041-5060.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 6-(Trifluoromethyl)pyrido[3,2-d]pyrimidine Using HRMS and NMR". Chromatographia, 2020, 1171, (8), 4460-4465.