发明人沈红梅,陈志强,孙丽萍. "Method for the Synthesis of 7-Chloro-9-oxo-9H-indeno[1,2-b]-pyrazine-2,3-dicarbonitrile" [P]. 中国发明专利, 专利号 CN 116965405 A, 授权公告日 2019-01-07.
发明人王建平,唐晓军,韩伟. "A Process for Preparing High-Purity 7-Chloro-9-oxo-9H-indeno[1,2-b]-pyrazine-2,3-dicarbonitrile" [P]. 中国发明专利, 专利号 CN 112271672 A, 授权公告日 2019-05-14.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2013, 2087, (5), 5318-5343.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2023, 566, (6), 9212-9228.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 7-Chloro-9-oxo-9H-indeno[1,2-b]-pyrazine-2,3-dicarbonitrile Using HRMS and NMR". Sci. Total Environ., 2018, 1157, (12), 7082-7101.