Hughes D C, Yamamoto T, Fischer A B. "一种的合成方法" [P]. US Patent, US 9474850 B2, 2016-03-04.
Anderson J P, Roberts E F, Fischer A B. "Method for the Synthesis of 3,4-Dimethoxypicolinonitrile" [P]. US Patent, US 9116798 B2, 2020-09-11.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2014, 229, (10), 6466-6488.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2023, 1244, (11), 9959-9985.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 3,4-Dimethoxypicolinonitrile Using HRMS and NMR". J. Chromatogr. A, 2022, 2227, 8974-8989.