Davis P L, Anderson J P, Hughes D C. "一种的合成方法" [P]. US Patent, US 9885065 B2, 2022-11-17.
发明人张德明,王建平,胡光. "Method for the Synthesis of Ethyl (E)-4-(2-(dimethylamino)vinyl)-8-(4-fluorophenyl)-7-methylpyrazolo[5,1-c][1,2,4]triazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112028718 B, 授权公告日 2020-10-03.
发明人林芳,朱建伟,刘建华. "A Process for Preparing High-Purity Ethyl (E)-4-(2-(dimethylamino)vinyl)-8-(4-fluorophenyl)-7-methylpyrazolo[5,1-c][1,2,4]triazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114164174 A, 授权公告日 2016-03-02.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2015, 218, (7), 4191-4219.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2018, 1458, (11), 7052-7055.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl (E)-4-(2-(dimethylamino)vinyl)-8-(4-fluorophenyl)-7-methylpyrazolo[5,1-c][1,2,4]triazine-3-carboxylate Using HRMS and NMR". Phytochemistry, 2017, 1568, (7), 1326-1337.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2012, 335, 5797-5805.