Fischer A B, Kumar R, Lee S K. "一种1-甲基-6,7-二氢-1H-吲唑-4(5H)-酮的合成方法" [P]. US Patent, US 11928526 B2, 2018-01-11.
Johansson L, Mueller T C, Kowalski A. "Method for the Synthesis of 1-Methyl-6,7-dihydro-1H-indazol-4(5H)-one" [P]. European Patent, EP 3274243 A1, 2025-09-11.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of 1-甲基-6,7-二氢-1H-吲唑-4(5H)-酮 in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2023, 287, (4), 3220-3248.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 1-甲基-6,7-二氢-1H-吲唑-4(5H)-酮 as an Impurity". J. Chromatogr. A, 2010, 1321, (7), 5616-5635.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-6,7-dihydro-1H-indazol-4(5H)-one Using HRMS and NMR". Phytochemistry, 2018, 2041, (1), 8034-8052.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate 1-甲基-6,7-二氢-1H-吲唑-4(5H)-酮 Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2014, 1727, (6), 5892-5916.