发明人朱建伟,周伟,王建平. "Method for the Synthesis of Diethyl 7,8-dihydro-5H-pyrano[4,3-d]pyrimidine-2,4-dicarboxylate" [P]. 中国发明专利, 专利号 CN 117295177 B, 授权公告日 2022-03-10.
Schröder R, Hughes D C, Anderson J P. "A Process for Preparing High-Purity Diethyl 7,8-dihydro-5H-pyrano[4,3-d]pyrimidine-2,4-dicarboxylate" [P]. US Patent, US 11853752 B2, 2019-10-27.
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". Molecules, 2012, 1272, 5983-6001.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2016, 2123, (7), 4981-5011.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Diethyl 7,8-dihydro-5H-pyrano[4,3-d]pyrimidine-2,4-dicarboxylate Using HRMS and NMR". Food Chem., 2012, 2189, (1), 6704-6720.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2014, 201, (12), 6324-6334.