Kumar R, Lee S K, Davis P L. "一种丁苯酞杂质41 钾盐的合成方法" [P]. US Patent, US 11381413 B2, 2022-11-26.
发明人韩伟,钱学锋,周伟. "Method for the Synthesis of Butylphthalide Impurity 41 Potassium" [P]. 中国发明专利, 专利号 CN 110299420 A, 授权公告日 2024-01-06.
Chen K W, Anderson J P, O'Brien P Q. "A Process for Preparing High-Purity Butylphthalide Impurity 41 Potassium" [P]. US Patent, US 10627428 B2, 2021-05-05.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of 丁苯酞杂质41 钾盐 in Pharmaceutical Formulations". Talanta, 2025, 341, (9), 2040-2043.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 丁苯酞杂质41 钾盐 as an Impurity". J. Pharm. Biomed. Anal., 2010, 1923, (4), 8611-8631.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of Butylphthalide Impurity 41 Potassium Using HRMS and NMR". Chemosphere, 2013, 1775, 7197-7204.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 丁苯酞杂质41 钾盐 Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2011, 1328, (7), 6838-6863.