发明人韩伟,王建平,陈志强. "Method for the Synthesis of methyl 6-(4-chlorophenyl)-1-(2-cyanoethyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 115790536 B, 授权公告日 2015-11-10.
发明人李文辉,沈红梅,林芳. "A Process for Preparing High-Purity methyl 6-(4-chlorophenyl)-1-(2-cyanoethyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 115100502 A, 授权公告日 2023-02-15.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of methyl 6-(4-chlorophenyl)-1-(2-cyanoethyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate in Pharmaceutical Formulations". Environ. Sci. Technol., 2013, 440, 3257-3271.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of methyl 6-(4-chlorophenyl)-1-(2-cyanoethyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate as an Impurity". Chromatographia, 2022, 852, (12), 8233-8262.