发明人胡光,张德明,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110164084 A, 授权公告日 2021-04-26.
发明人罗永刚,王建平,郭海燕. "Method for the Synthesis of 1,7-Dimethyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110237618 B, 授权公告日 2023-06-14.
发明人黄志刚,高志强,杨光. "A Process for Preparing High-Purity 1,7-Dimethyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115995948 B, 授权公告日 2021-08-17.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2018, 863, (3), 6210-6231.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2016, 332, (2), 8193-8222.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 1,7-Dimethyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2016, 1943, (1), 3524-3536.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2012, 864, 596-618.