Brown S R, Park J H, Hughes D C. "一种的合成方法" [P]. US Patent, US 11173649 B2, 2016-07-08.
发明人何建平,郭海燕,张德明. "Method for the Synthesis of Tert-butyl 3-methyl-2,4,5,7-tetrahydro-6H-pyrazolo[3,4-c]pyridine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 109904361 A, 授权公告日 2018-10-14.
发明人马晓峰,李文辉,何建平. "A Process for Preparing High-Purity Tert-butyl 3-methyl-2,4,5,7-tetrahydro-6H-pyrazolo[3,4-c]pyridine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 114849071 A, 授权公告日 2023-12-21.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2013, 304, (11), 4472-4483.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2013, 828, 7514-7532.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 3-methyl-2,4,5,7-tetrahydro-6H-pyrazolo[3,4-c]pyridine-6-carboxylate Using HRMS and NMR". Food Chem., 2018, 1137, (9), 6063-6089.