发明人罗永刚,陈志强,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110640083 A, 授权公告日 2022-05-13.
发明人胡光,马晓峰,沈红梅. "Method for the Synthesis of 2-(5-Bromothiophene-2-carboxamido)-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide" [P]. 中国发明专利, 专利号 CN 112499694 B, 授权公告日 2020-06-23.
发明人钱学锋,沈红梅,陈志强. "A Process for Preparing High-Purity 2-(5-Bromothiophene-2-carboxamido)-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide" [P]. 中国发明专利, 专利号 CN 116871249 A, 授权公告日 2024-10-03.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2011, 324, (7), 9749-9765.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2022, 1426, 3003-3015.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 2-(5-Bromothiophene-2-carboxamido)-N-methyl-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide Using HRMS and NMR". J. Sep. Sci., 2012, 1239, (12), 3941-3952.