发明人马晓峰,高志强,钱学锋. "Method for the Synthesis of 4-Oxo-4-(p-tolylamino)but-2-enoic acid" [P]. 中国发明专利, 专利号 CN 108503078 A, 授权公告日 2019-02-08.
发明人张德明,朱建伟,郭海燕. "A Process for Preparing High-Purity 4-Oxo-4-(p-tolylamino)but-2-enoic acid" [P]. 中国发明专利, 专利号 CN 113568097 B, 授权公告日 2015-12-25.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2023, 456, (12), 5125-5136.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2011, 2147, (8), 8281-8290.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4-Oxo-4-(p-tolylamino)but-2-enoic acid Using HRMS and NMR". Sci. Total Environ., 2024, 628, 5140-5164.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2025, 771, (3), 9484-9492.