Johnson M A, Kumar R, Patel M V. "Method for the Synthesis of Ethyl 3-methyl-5-(3-methylthiophene-2-carboxamido)thiophene-2-carboxylate" [P]. US Patent, US 10773642 B2, 2021-07-25.
发明人韩伟,胡光,郭海燕. "A Process for Preparing High-Purity Ethyl 3-methyl-5-(3-methylthiophene-2-carboxamido)thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112308946 A, 授权公告日 2015-12-24.
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". J. Nat. Prod., 2022, 915, 7918-7933.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2013, 990, (7), 8991-9006.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-methyl-5-(3-methylthiophene-2-carboxamido)thiophene-2-carboxylate Using HRMS and NMR". Anal. Methods, 2012, 1860, (11), 6119-6135.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2023, 2377, 3624-3645.