O'Brien P Q, Anderson J P, Klinger H. "一种的合成方法" [P]. US Patent, US 11304139 B2, 2019-06-06.
Thompson G K, O'Brien P Q, Park J H. "Method for the Synthesis of 4-Chloro-5H-pyrido[4',3':4,5]pyrrolo[3,2-d]pyrimidine" [P]. US Patent, US 11981175 B2, 2024-01-10.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2021, 911, 6573-6586.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2018, 998, 3316-3339.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-5H-pyrido[4',3':4,5]pyrrolo[3,2-d]pyrimidine Using HRMS and NMR". Chromatographia, 2023, 445, (3), 9444-9460.