Fischer A B, Davis P L, Chen K W. "一种的合成方法" [P]. US Patent, US 9071488 B2, 2017-03-10.
Yamamoto T, Fischer A B, Thompson G K. "Method for the Synthesis of 4-Desisopropyl-4-propyl Imazethapyr" [P]. US Patent, US 11511917 B2, 2017-11-27.
发明人何建平,胡光,马晓峰. "A Process for Preparing High-Purity 4-Desisopropyl-4-propyl Imazethapyr" [P]. 中国发明专利, 专利号 CN 115466366 A, 授权公告日 2020-11-19.
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". Anal. Chim. Acta, 2012, 1565, (11), 4981-5010.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2021, 1814, 1195-1205.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-Desisopropyl-4-propyl Imazethapyr Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2010, 574, (4), 2359-2374.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2019, 2347, 2340-2353.