发明人赵玉洁,刘建华,罗永刚. "Method for the Synthesis of 2(1H)-Pyrazinone, 5-chloro-3-hydrazinyl-1-methyl-" [P]. 中国发明专利, 专利号 CN 113122789 B, 授权公告日 2024-07-09.
发明人何建平,冯建国,马晓峰. "A Process for Preparing High-Purity 2(1H)-Pyrazinone, 5-chloro-3-hydrazinyl-1-methyl-" [P]. 中国发明专利, 专利号 CN 117820823 B, 授权公告日 2018-04-15.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2024, 1443, 4471-4479.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2013, 1574, (9), 3147-3160.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 2(1H)-Pyrazinone, 5-chloro-3-hydrazinyl-1-methyl- Using HRMS and NMR". Sci. Total Environ., 2010, 792, (8), 9885-9914.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2011, 2267, 1753-1765.