发明人孙丽萍,何建平,李文辉. "Method for the Synthesis of 3-Ethyl-1,1-diphenylurea, 99%" [P]. 中国发明专利, 专利号 CN 110330453 A, 授权公告日 2021-11-20.
Martínez F, Nielsen H, Jørgensen K. "A Process for Preparing High-Purity 3-Ethyl-1,1-diphenylurea, 99%" [P]. European Patent, EP 3575995 A1, 2016-09-25.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2016, 817, (12), 4118-4145.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2022, 2321, 208-216.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethyl-1,1-diphenylurea, 99% Using HRMS and NMR". J. Nat. Prod., 2014, 1554, (8), 8927-8950.