发明人杨光,胡光,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109931012 A, 授权公告日 2016-08-03.
发明人郑宇鹏,何建平,赵玉洁. "Method for the Synthesis of 7-Nitro-2-[2-(4-phenylpiperazin-1-yl)ethyl]-3,4-dihydro-2H-1,4-benzoxazin-3-one" [P]. 中国发明专利, 专利号 CN 111266416 B, 授权公告日 2017-01-03.
发明人高志强,何建平,韩伟. "A Process for Preparing High-Purity 7-Nitro-2-[2-(4-phenylpiperazin-1-yl)ethyl]-3,4-dihydro-2H-1,4-benzoxazin-3-one" [P]. 中国发明专利, 专利号 CN 112975210 B, 授权公告日 2015-05-02.
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". Anal. Chim. Acta, 2017, 869, (5), 7255-7267.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2024, 347, (12), 5272-5296.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 7-Nitro-2-[2-(4-phenylpiperazin-1-yl)ethyl]-3,4-dihydro-2H-1,4-benzoxazin-3-one Using HRMS and NMR". J. Chromatogr. A, 2011, 458, 2535-2558.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2015, 2073, (7), 6149-6172.