发明人朱建伟,韩伟,刘建华. "Method for the Synthesis of Methyl 3-[1-(4-chlorobenzoyl)-3-methyl-1H-pyrazole-4-amido]thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 111398216 B, 授权公告日 2024-09-28.
发明人黄志刚,林芳,周伟. "A Process for Preparing High-Purity Methyl 3-[1-(4-chlorobenzoyl)-3-methyl-1H-pyrazole-4-amido]thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 113917265 A, 授权公告日 2024-06-12.
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". Anal. Chim. Acta, 2017, 2459, 3360-3375.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2020, 556, (3), 7716-7739.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 3-[1-(4-chlorobenzoyl)-3-methyl-1H-pyrazole-4-amido]thiophene-2-carboxylate Using HRMS and NMR". Talanta, 2015, 1446, 9363-9378.