发明人郑宇鹏,林芳,冯建国. "Method for the Synthesis of 4-(2-Cyanopropan-2-yl)picolinic acid" [P]. 中国发明专利, 专利号 CN 109301063 B, 授权公告日 2020-07-06.
Lee S K, Hughes D C, Schröder R. "A Process for Preparing High-Purity 4-(2-Cyanopropan-2-yl)picolinic acid" [P]. US Patent, US 11230156 B2, 2022-05-18.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2017, 506, 368-372.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2011, 92, 8299-8313.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-Cyanopropan-2-yl)picolinic acid Using HRMS and NMR". J. Chromatogr. A, 2023, 1930, (9), 5207-5232.