Stevens L M, Schröder R, Anderson J P. "一种的合成方法" [P]. US Patent, US 10949923 B2, 2018-06-11.
Klinger H, O'Brien P Q, Patel M V. "Method for the Synthesis of Methyl 1-methyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-3-carboxylate hydrochloride" [P]. US Patent, US 10241473 B2, 2020-03-26.
发明人赵玉洁,钱学锋,冯建国. "A Process for Preparing High-Purity Methyl 1-methyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-3-carboxylate hydrochloride" [P]. 中国发明专利, 专利号 CN 111792141 B, 授权公告日 2025-06-07.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2015, 2160, 6071-6101.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2018, 412, (3), 9622-9646.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 1-methyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-3-carboxylate hydrochloride Using HRMS and NMR". Environ. Sci. Technol., 2020, 438, 2234-2246.