发明人何建平,罗永刚,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116261477 A, 授权公告日 2024-09-26.
发明人罗永刚,朱建伟,张德明. "Method for the Synthesis of Ethyl 3-(3,5-difluoro-4-hydroxyphenyl)-2-methylpropanoate" [P]. 中国发明专利, 专利号 CN 110358062 B, 授权公告日 2017-05-23.
Patel M V, Schröder R, Brown S R. "A Process for Preparing High-Purity Ethyl 3-(3,5-difluoro-4-hydroxyphenyl)-2-methylpropanoate" [P]. US Patent, US 11219287 B2, 2025-06-21.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2013, 1891, (6), 5403-5406.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2017, 215, (11), 2145-2150.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-(3,5-difluoro-4-hydroxyphenyl)-2-methylpropanoate Using HRMS and NMR". Anal. Chem., 2013, 910, (12), 7608-7614.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2020, 1852, (9), 1660-1683.