发明人钱学锋,徐明华,郑宇鹏. "Method for the Synthesis of 5-Amino-6-chloropyridazine-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 115932855 A, 授权公告日 2021-07-02.
发明人何建平,钱学锋,罗永刚. "A Process for Preparing High-Purity 5-Amino-6-chloropyridazine-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 115106280 B, 授权公告日 2023-03-26.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2018, 1080, (7), 2290-2315.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2015, 2362, (10), 624-643.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 5-Amino-6-chloropyridazine-4-carbonitrile Using HRMS and NMR". Anal. Chem., 2013, 334, (7), 5439-5467.