发明人唐晓军,赵玉洁,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114622427 A, 授权公告日 2020-01-11.
Thompson G K, Fischer A B, Chen K W. "Method for the Synthesis of 7-(Diethylamino)-2-imino-2H-chromene-3-carboxamide" [P]. US Patent, US 11801592 B2, 2025-10-19.
发明人陈志强,杨光,胡光. "A Process for Preparing High-Purity 7-(Diethylamino)-2-imino-2H-chromene-3-carboxamide" [P]. 中国发明专利, 专利号 CN 110177834 A, 授权公告日 2020-12-07.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2018, 2205, (10), 130-153.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2016, 2182, 6618-6646.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 7-(Diethylamino)-2-imino-2H-chromene-3-carboxamide Using HRMS and NMR". J. Pharm. Biomed. Anal., 2023, 632, 2597-2613.