Chen K W, Brown S R, Davis P L. "一种的合成方法" [P]. US Patent, US 11619595 B2, 2024-03-12.
Chen K W, Schröder R, Stevens L M. "Method for the Synthesis of 1-(4-Nitrophenyl)indeno[1,2-c]pyrazol-4(1H)-one" [P]. US Patent, US 10097120 B2, 2017-10-13.
Stevens L M, Johnson M A, Fischer A B. "A Process for Preparing High-Purity 1-(4-Nitrophenyl)indeno[1,2-c]pyrazol-4(1H)-one" [P]. US Patent, US 9516941 B2, 2025-04-01.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2010, 133, 8673-8691.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2014, 1842, (9), 6990-7011.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 1-(4-Nitrophenyl)indeno[1,2-c]pyrazol-4(1H)-one Using HRMS and NMR". J. Agric. Food Chem., 2012, 1961, 2802-2832.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2015, 121, (11), 2123-2133.