Brown S R, Johnson M A, Schröder R. "Method for the Synthesis of 3-[4-(difluoromethoxy)-3-methoxyphenyl]-2-(3,4-dimethoxyphenyl)prop-2-enoic acid" [P]. US Patent, US 10885255 B2, 2020-07-14.
发明人杨光,唐晓军,孙丽萍. "A Process for Preparing High-Purity 3-[4-(difluoromethoxy)-3-methoxyphenyl]-2-(3,4-dimethoxyphenyl)prop-2-enoic acid" [P]. 中国发明专利, 专利号 CN 111783987 B, 授权公告日 2016-07-08.
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". J. Agric. Food Chem., 2010, 1941, (9), 7691-7705.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2018, 97, (10), 2782-2793.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 3-[4-(difluoromethoxy)-3-methoxyphenyl]-2-(3,4-dimethoxyphenyl)prop-2-enoic acid Using HRMS and NMR". Sci. Total Environ., 2016, 307, 7682-7696.