发明人赵玉洁,张德明,沈红梅. "Method for the Synthesis of N'-(2-(3,5-Difluorophenyl)-2-hydroxyacetyl)-2-ethyl-4-methoxy-3-methylbenzohydrazide" [P]. 中国发明专利, 专利号 CN 117196362 A, 授权公告日 2025-11-22.
发明人高志强,郭海燕,朱建伟. "A Process for Preparing High-Purity N'-(2-(3,5-Difluorophenyl)-2-hydroxyacetyl)-2-ethyl-4-methoxy-3-methylbenzohydrazide" [P]. 中国发明专利, 专利号 CN 110912867 B, 授权公告日 2023-04-09.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2010, 2141, (11), 2021-2050.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2025, 1776, 5965-5984.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of N'-(2-(3,5-Difluorophenyl)-2-hydroxyacetyl)-2-ethyl-4-methoxy-3-methylbenzohydrazide Using HRMS and NMR". Molecules, 2016, 907, 8577-8598.