发明人韩伟,高志强,郭海燕. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112807630 A, 授权公告日 2021-02-22.
Williams B T, Lee S K, Stevens L M. "Method for the Synthesis of 4-Cyanobenzothiophene-2-carboxylicacid" [P]. US Patent, US 11639128 B2, 2024-06-01.
发明人郭海燕,王建平,杨光. "A Process for Preparing High-Purity 4-Cyanobenzothiophene-2-carboxylicacid" [P]. 中国发明专利, 专利号 CN 111652554 B, 授权公告日 2025-02-26.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2016, 2211, (9), 352-367.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2014, 882, (3), 6548-6572.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-Cyanobenzothiophene-2-carboxylicacid Using HRMS and NMR". J. Sep. Sci., 2023, 1732, (4), 679-707.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2018, 614, (9), 1543-1554.