O'Brien P Q, Patel M V, Klinger H. "一种的合成方法" [P]. US Patent, US 11578324 B2, 2024-01-16.
Johansson L, Schröder R, Rossi M. "Method for the Synthesis of Methyl 4-chloro-5,7-dihydrofuro[3,4-d]pyrimidine-2-carboxylate" [P]. European Patent, EP 3602207 A1, 2023-05-11.
Lee S K, Schröder R, Klinger H. "A Process for Preparing High-Purity Methyl 4-chloro-5,7-dihydrofuro[3,4-d]pyrimidine-2-carboxylate" [P]. US Patent, US 9620377 B2, 2019-03-07.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2025, 1567, 5799-5827.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2016, 1153, (2), 9805-9812.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-chloro-5,7-dihydrofuro[3,4-d]pyrimidine-2-carboxylate Using HRMS and NMR". J. Nat. Prod., 2017, 333, 9687-9715.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2021, 2152, (1), 3458-3462.