Stevens L M, Hughes D C, Mueller T. "Method for the Synthesis of 3-(benzylamino)-4-ethoxy-cyclobut-3-ene-1,2-dione" [P]. US Patent, US 10722024 B2, 2025-07-17.
发明人冯建国,刘建华,郭海燕. "A Process for Preparing High-Purity 3-(benzylamino)-4-ethoxy-cyclobut-3-ene-1,2-dione" [P]. 中国发明专利, 专利号 CN 114369950 A, 授权公告日 2021-06-08.
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. Sep. Sci., 2015, 937, 4275-4302.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2022, 2136, (5), 7565-7576.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 3-(benzylamino)-4-ethoxy-cyclobut-3-ene-1,2-dione Using HRMS and NMR". Anal. Chim. Acta, 2022, 2214, (7), 9374-9385.