发明人周伟,罗永刚,郭海燕. "Method for the Synthesis of 4-(Ethoxymethylene)-2-(p-tolyl)oxazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 108189492 B, 授权公告日 2015-06-09.
Lee S K, Johnson M A, O'Brien P Q. "A Process for Preparing High-Purity 4-(Ethoxymethylene)-2-(p-tolyl)oxazol-5(4H)-one" [P]. US Patent, US 10575868 B2, 2017-11-05.
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". Talanta, 2025, 1138, 4857-4867.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2016, 1387, (1), 565-580.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Ethoxymethylene)-2-(p-tolyl)oxazol-5(4H)-one Using HRMS and NMR". Anal. Chem., 2013, 856, 3714-3740.