Björnsson E, Sørensen M, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3617929 A1, 2024-07-26.
发明人王建平,钱学锋,罗永刚. "Method for the Synthesis of 2-methylsulfanylpyrido[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 115768562 A, 授权公告日 2018-10-06.
发明人黄志刚,冯建国,林芳. "A Process for Preparing High-Purity 2-methylsulfanylpyrido[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 110197140 B, 授权公告日 2020-11-10.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2012, 2243, 8444-8460.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2025, 667, 7917-7932.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 2-methylsulfanylpyrido[4,3-d]pyrimidine Using HRMS and NMR". Environ. Sci. Technol., 2022, 1893, 8137-8156.