Björnsson E, Johansson L, Sørensen M. "一种的合成方法" [P]. European Patent, EP 3495693 A1, 2023-07-03.
Brown S R, Mueller T, Yamamoto T. "Method for the Synthesis of Methyl 6-oxohexahydropyridazine-4-carboxylate" [P]. US Patent, US 10742566 B2, 2021-05-23.
发明人黄志刚,杨光,孙丽萍. "A Process for Preparing High-Purity Methyl 6-oxohexahydropyridazine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 115608737 B, 授权公告日 2015-05-13.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2020, 277, 4957-4977.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2024, 984, (11), 5557-5578.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 6-oxohexahydropyridazine-4-carboxylate Using HRMS and NMR". Phytochemistry, 2010, 637, 9774-9802.