Johnson M A, Anderson J P, Lee S K. "Method for the Synthesis of Ethyl 1-(tert-butyl)-5-methyl-1H-pyrazole-4-carboxylate" [P]. US Patent, US 10996443 B2, 2022-02-23.
Chen K W, Johnson M A, Davis P L. "A Process for Preparing High-Purity Ethyl 1-(tert-butyl)-5-methyl-1H-pyrazole-4-carboxylate" [P]. US Patent, US 10403457 B2, 2015-02-02.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2010, 1652, 6122-6146.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2012, 2172, 5122-5126.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 1-(tert-butyl)-5-methyl-1H-pyrazole-4-carboxylate Using HRMS and NMR". Chromatographia, 2022, 860, 9580-9597.