发明人王建平,马晓峰,冯建国. "Method for the Synthesis of 6-(3,4-Dimethoxyphenyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 113299724 B, 授权公告日 2019-07-18.
发明人刘建华,郑宇鹏,钱学锋. "A Process for Preparing High-Purity 6-(3,4-Dimethoxyphenyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 116022660 B, 授权公告日 2021-10-27.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2015, 1253, 5481-5492.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2010, 2124, (2), 6158-6170.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 6-(3,4-Dimethoxyphenyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile Using HRMS and NMR". Molecules, 2011, 347, 4464-4474.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2024, 1751, (8), 798-812.