Yamamoto T, Schröder R, Thompson G K. "一种的合成方法" [P]. US Patent, US 11745856 B2, 2019-03-02.
Schröder R, Roberts E F, Fischer A B. "Method for the Synthesis of 1-Isopropyl-1,4-dihydrospiro[indazole-5,4'-piperidin]-7(6H)-one" [P]. US Patent, US 9164194 B2, 2020-11-12.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2021, 1984, 673-694.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2022, 210, (4), 7787-7804.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 1-Isopropyl-1,4-dihydrospiro[indazole-5,4'-piperidin]-7(6H)-one Using HRMS and NMR". Chromatographia, 2018, 2015, 2365-2380.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2024, 1090, (3), 1123-1147.