Chen K W, Patel M V, Park J H. "Method for the Synthesis of 2,4-Difluoro-4-(4-methylpiperazinomethyl) benzophenone" [P]. US Patent, US 11791266 B2, 2022-08-19.
Johansson L, Nielsen H, Nowak P. "A Process for Preparing High-Purity 2,4-Difluoro-4-(4-methylpiperazinomethyl) benzophenone" [P]. European Patent, EP 3665708 A1, 2025-11-21.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2025, 1066, (1), 5682-5704.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2019, 1472, (4), 5538-5543.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 2,4-Difluoro-4-(4-methylpiperazinomethyl) benzophenone Using HRMS and NMR". J. Nat. Prod., 2024, 1189, (1), 6500-6510.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2020, 1333, 8071-8096.