Jørgensen K, Schröder R, Johansson L. "Method for the Synthesis of 3-Amino-5-ethyl-4,6-dimethylthieno[2,3-b]pyridine-2-carbonitrile" [P]. European Patent, EP 3508633 A1, 2018-07-12.
发明人沈红梅,郑宇鹏,胡光. "A Process for Preparing High-Purity 3-Amino-5-ethyl-4,6-dimethylthieno[2,3-b]pyridine-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 112423944 A, 授权公告日 2015-04-03.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2010, 1954, (4), 1919-1934.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2011, 1460, (1), 643-655.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 3-Amino-5-ethyl-4,6-dimethylthieno[2,3-b]pyridine-2-carbonitrile Using HRMS and NMR". Environ. Sci. Technol., 2025, 2176, (8), 2778-2787.