Davis P L, Schröder R, Stevens L M. "Method for the Synthesis of 2-Methyl-3-(6-methylpicolinamido)propanoic acid" [P]. US Patent, US 10452404 B2, 2020-11-08.
Johnson M A, Davis P L, Klinger H. "A Process for Preparing High-Purity 2-Methyl-3-(6-methylpicolinamido)propanoic acid" [P]. US Patent, US 10828498 B2, 2019-03-22.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2014, 1553, (11), 2326-2347.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2023, 479, (8), 2927-2936.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 2-Methyl-3-(6-methylpicolinamido)propanoic acid Using HRMS and NMR". Chromatographia, 2022, 316, (5), 4136-4145.