Kowalski A, Nielsen H, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3875577 A1, 2019-04-14.
Nielsen H, Mueller T C, Rossi M. "Method for the Synthesis of 2-(2-(Propan-2-ylidene)hydrazinyl)isonicotinic acid" [P]. European Patent, EP 3279355 A1, 2024-03-18.
Kumar R, Thompson G K, Brown S R. "A Process for Preparing High-Purity 2-(2-(Propan-2-ylidene)hydrazinyl)isonicotinic acid" [P]. US Patent, US 10124049 B2, 2024-10-22.
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". Biomed. Chromatogr., 2019, 946, (9), 7937-7943.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2014, 442, (6), 9054-9066.