Park J H, O'Brien P Q, Johnson M A. "一种的合成方法" [P]. US Patent, US 9430456 B2, 2019-07-04.
Stevens L M, Chen K W, Thompson G K. "Method for the Synthesis of 4-[(2-Chlorophenyl)sulfanyl]-6-(methylsulfanyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine" [P]. US Patent, US 11768151 B2, 2024-08-26.
发明人张德明,冯建国,马晓峰. "A Process for Preparing High-Purity 4-[(2-Chlorophenyl)sulfanyl]-6-(methylsulfanyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 116776668 A, 授权公告日 2019-06-06.
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., 2012, 1160, (9), 7568-7572.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2022, 412, (10), 651-667.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 4-[(2-Chlorophenyl)sulfanyl]-6-(methylsulfanyl)-1-phenyl-1H-pyrazolo[3,4-d]pyrimidine Using HRMS and NMR". Food Chem., 2014, 743, (11), 1836-1856.