发明人郑宇鹏,周伟,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115431589 A, 授权公告日 2018-05-04.
Rossi M, Martínez F, Mueller T C. "Method for the Synthesis of 4'H,6'H-spiro[cyclopropane-1,5'-pyrrolo[1,2-b]pyrazole]-2'-carboxylic acid" [P]. European Patent, EP 3276103 A1, 2023-10-04.
发明人陈志强,钱学锋,郑宇鹏. "A Process for Preparing High-Purity 4'H,6'H-spiro[cyclopropane-1,5'-pyrrolo[1,2-b]pyrazole]-2'-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115294662 A, 授权公告日 2023-09-14.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2025, 1856, (5), 7473-7492.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2022, 1727, (5), 9335-9350.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4'H,6'H-spiro[cyclopropane-1,5'-pyrrolo[1,2-b]pyrazole]-2'-carboxylic acid Using HRMS and NMR". Phytochemistry, 2020, 1915, 4635-4640.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2024, 402, (2), 9694-9703.