Anderson J P, O'Brien P Q, Lee S K. "一种的合成方法" [P]. US Patent, US 9667587 B2, 2021-06-21.
Martínez F, Kowalski A, Mueller T C. "Method for the Synthesis of 4-Chloro-1-(3-methylpyridin-4-yl)-1h-pyrazolo[3,4-d]pyrimidine" [P]. European Patent, EP 3385083 A1, 2024-08-28.
Stevens L M, Anderson J P, Thompson G K. "A Process for Preparing High-Purity 4-Chloro-1-(3-methylpyridin-4-yl)-1h-pyrazolo[3,4-d]pyrimidine" [P]. US Patent, US 11823089 B2, 2020-06-11.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2017, 1292, (5), 2889-2897.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2017, 1700, 4722-4734.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-1-(3-methylpyridin-4-yl)-1h-pyrazolo[3,4-d]pyrimidine Using HRMS and NMR". J. Sep. Sci., 2023, 2385, (10), 6859-6883.