发明人沈红梅,韩伟,张德明. "Method for the Synthesis of 2-Ethyl-4-(2-methylpropylidene)oxazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 108983643 B, 授权公告日 2025-06-26.
Fischer A B, Patel M V, Williams B T. "A Process for Preparing High-Purity 2-Ethyl-4-(2-methylpropylidene)oxazol-5(4H)-one" [P]. US Patent, US 11997149 B2, 2016-03-02.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2023, 1028, 5592-5598.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2012, 475, 7790-7793.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 2-Ethyl-4-(2-methylpropylidene)oxazol-5(4H)-one Using HRMS and NMR". Phytochemistry, 2011, 308, 9238-9244.