Brown S R, Davis P L, Patel M V. "一种的合成方法" [P]. US Patent, US 9511625 B2, 2018-10-15.
Fischer A B, Williams B T, Anderson J P. "Method for the Synthesis of Methyl 2,3-difluoro-4-methylbenzoate" [P]. US Patent, US 10860186 B2, 2023-11-21.
O'Brien P Q, Johnson M A, Park J H. "A Process for Preparing High-Purity Methyl 2,3-difluoro-4-methylbenzoate" [P]. US Patent, US 9694308 B2, 2023-07-26.
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". Phytochemistry, 2024, 1684, (1), 3406-3420.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2017, 1671, (9), 4767-4793.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2,3-difluoro-4-methylbenzoate Using HRMS and NMR". Chromatographia, 2021, 556, 6689-6717.