Schröder R, Kowalski A, Sørensen M. "Method for the Synthesis of Ethyl 5-amino-2,3-dihydro-1,3,4-thiadiazole-2-carboxylate" [P]. European Patent, EP 3636594 A1, 2024-02-07.
Yamamoto T, Chen K W, Brown S R. "A Process for Preparing High-Purity Ethyl 5-amino-2,3-dihydro-1,3,4-thiadiazole-2-carboxylate" [P]. US Patent, US 11071044 B2, 2018-05-16.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2015, 1053, 8334-8346.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2015, 344, 2875-2898.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-amino-2,3-dihydro-1,3,4-thiadiazole-2-carboxylate Using HRMS and NMR". Phytochemistry, 2024, 2028, 3056-3081.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2019, 1315, (5), 2573-2597.