发明人林芳,何建平,李文辉. "Method for the Synthesis of 2,5-diamino-6-nitro-3,4-dihydroquinazolin-4-one" [P]. 中国发明专利, 专利号 CN 114750404 B, 授权公告日 2023-11-14.
发明人张德明,杨光,黄志刚. "A Process for Preparing High-Purity 2,5-diamino-6-nitro-3,4-dihydroquinazolin-4-one" [P]. 中国发明专利, 专利号 CN 113875008 A, 授权公告日 2018-01-11.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2017, 814, (8), 9758-9783.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2020, 1681, (10), 3999-4028.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 2,5-diamino-6-nitro-3,4-dihydroquinazolin-4-one Using HRMS and NMR". J. Sep. Sci., 2021, 322, 6626-6636.