Kumar R, Schröder R, O'Brien P Q. "Method for the Synthesis of 3-Ethyl-4-isopropyl-1H-1,2,4-triazol-5(4H)-one" [P]. US Patent, US 10252777 B2, 2024-10-22.
Davis P L, Patel M V, Kumar R. "A Process for Preparing High-Purity 3-Ethyl-4-isopropyl-1H-1,2,4-triazol-5(4H)-one" [P]. US Patent, US 10044108 B2, 2022-11-16.
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". Phytochemistry, 2014, 110, (11), 944-974.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2025, 1284, 2034-2051.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethyl-4-isopropyl-1H-1,2,4-triazol-5(4H)-one Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2012, 1850, (10), 5645-5659.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2016, 2328, 8777-8802.