Schröder R, Nowak P, Jørgensen K. "Method for the Synthesis of 2-Hydrazono-1-methyl-1,2-dihydropyridine" [P]. European Patent, EP 3677578 A1, 2023-04-05.
发明人罗永刚,马晓峰,郭海燕. "A Process for Preparing High-Purity 2-Hydrazono-1-methyl-1,2-dihydropyridine" [P]. 中国发明专利, 专利号 CN 113370186 B, 授权公告日 2022-03-21.
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". Environ. Sci. Technol., 2020, 123, 5036-5044.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2020, 1327, 1826-1835.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 2-Hydrazono-1-methyl-1,2-dihydropyridine Using HRMS and NMR". Anal. Methods, 2023, 2452, (11), 792-801.