Kowalski A, Johansson L, Martínez F. "一种的合成方法" [P]. European Patent, EP 3943293 A1, 2017-09-18.
Yamamoto T, Klinger H, Fischer A B. "Method for the Synthesis of 2-(5,6-Dimethoxy-1H-indazol-3-yl)acetic acid" [P]. US Patent, US 9309300 B2, 2025-12-17.
Williams B T, Anderson J P, Yamamoto T. "A Process for Preparing High-Purity 2-(5,6-Dimethoxy-1H-indazol-3-yl)acetic acid" [P]. US Patent, US 9688774 B2, 2022-12-07.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2014, 1593, 3966-3974.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2011, 200, 8081-8097.