Chen K W, Johnson M A, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 11461001 B2, 2015-03-19.
发明人钱学锋,郭海燕,沈红梅. "Method for the Synthesis of N-Butyl-4-methoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxamide" [P]. 中国发明专利, 专利号 CN 108084901 A, 授权公告日 2016-06-06.
Stevens L M, Kumar R, Davis P L. "A Process for Preparing High-Purity N-Butyl-4-methoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxamide" [P]. US Patent, US 11183861 B2, 2018-05-02.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2016, 1310, (9), 8624-8649.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2024, 1169, (4), 9412-9440.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of N-Butyl-4-methoxy-6-oxo-1-(p-tolyl)-1,6-dihydropyridazine-3-carboxamide Using HRMS and NMR". Biomed. Chromatogr., 2019, 834, 7451-7479.