发明人孙丽萍,郑宇鹏,郭海燕. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113651576 A, 授权公告日 2015-08-20.
发明人孙丽萍,林芳,韩伟. "Method for the Synthesis of 5-(4-Butoxy-3-ethoxyphenyl)-3-hydroxy-4-(7-methoxybenzofuran-2-carbonyl)-1-(2-methoxyethyl)-1H-pyrrol-2(5H)-one" [P]. 中国发明专利, 专利号 CN 116880758 B, 授权公告日 2025-05-16.
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". Chromatographia, 2017, 1726, (6), 4943-4957.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2015, 1568, (8), 5306-5333.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 5-(4-Butoxy-3-ethoxyphenyl)-3-hydroxy-4-(7-methoxybenzofuran-2-carbonyl)-1-(2-methoxyethyl)-1H-pyrrol-2(5H)-one Using HRMS and NMR". J. Agric. Food Chem., 2018, 220, 4065-4077.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2018, 494, (10), 8659-8671.