发明人郭海燕,郑宇鹏,胡光. "Method for the Synthesis of (2Z)-2-Amino-3-[(E)-[(pyridin-2-yl)methylidene]amino]but-2-enedinitrile" [P]. 中国发明专利, 专利号 CN 115615435 A, 授权公告日 2022-01-07.
Lee S K, Chen K W, Johnson M A. "A Process for Preparing High-Purity (2Z)-2-Amino-3-[(E)-[(pyridin-2-yl)methylidene]amino]but-2-enedinitrile" [P]. US Patent, US 10265513 B2, 2023-07-13.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2018, 1375, (11), 6640-6668.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2014, 763, (2), 4390-4398.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of (2Z)-2-Amino-3-[(E)-[(pyridin-2-yl)methylidene]amino]but-2-enedinitrile Using HRMS and NMR". Environ. Sci. Technol., 2022, 1310, 4302-4316.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2016, 1668, (4), 4942-4946.