发明人韩伟,王建平,刘建华. "Method for the Synthesis of Pyrido[3,4-d]pyrimidin-4(3H)-one, 97%" [P]. 中国发明专利, 专利号 CN 115108658 B, 授权公告日 2016-12-17.
Park J H, Fischer A B, Williams B T. "A Process for Preparing High-Purity Pyrido[3,4-d]pyrimidin-4(3H)-one, 97%" [P]. US Patent, US 9887230 B2, 2019-03-27.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2011, 224, (12), 5790-5801.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2023, 1440, (2), 6924-6930.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Pyrido[3,4-d]pyrimidin-4(3H)-one, 97% Using HRMS and NMR". J. Chromatogr. A, 2019, 1378, (1), 5676-5686.