发明人罗永刚,王建平,李文辉. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110074982 A, 授权公告日 2016-08-01.
发明人罗永刚,张德明,黄志刚. "Method for the Synthesis of 3,4-Dihydropyrimido[5,4-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 109922469 A, 授权公告日 2017-10-15.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2013, 2387, 5605-5616.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2017, 1973, 6015-6019.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 3,4-Dihydropyrimido[5,4-d]pyrimidine Using HRMS and NMR". Phytochemistry, 2023, 1251, 713-741.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2017, 1380, (5), 8259-8286.