Yamamoto T, Kumar R, Hughes D C. "一种的合成方法" [P]. US Patent, US 9183044 B2, 2015-03-10.
Brown S R, Park J H, Hughes D C. "Method for the Synthesis of 2,8-dichlorobenzofuro[3,2-d]pyrimidine" [P]. US Patent, US 10228036 B2, 2017-03-15.
发明人郭海燕,孙丽萍,冯建国. "A Process for Preparing High-Purity 2,8-dichlorobenzofuro[3,2-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 111837973 B, 授权公告日 2015-08-20.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2021, 1189, 6701-6714.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2010, 2330, (8), 1870-1876.