发明人罗永刚,唐晓军,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113726554 A, 授权公告日 2015-07-20.
Schröder R, Mueller T C, Kowalski A. "Method for the Synthesis of 3-(Difluoromethyl)-5-fluorothieno[3,2-b]thiophene-2-carbaldehyde" [P]. European Patent, EP 3073911 A1, 2022-02-27.
Williams B T, Kumar R, Thompson G K. "A Process for Preparing High-Purity 3-(Difluoromethyl)-5-fluorothieno[3,2-b]thiophene-2-carbaldehyde" [P]. US Patent, US 9282684 B2, 2018-11-28.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2022, 1570, 4684-4691.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2012, 2064, 7895-7910.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 3-(Difluoromethyl)-5-fluorothieno[3,2-b]thiophene-2-carbaldehyde Using HRMS and NMR". Chemosphere, 2020, 946, (3), 2337-2357.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2019, 1598, 5655-5671.