发明人黄志刚,罗永刚,胡光. "Method for the Synthesis of 2,2-Dimethyl-4-(4-methoxy-2-methylphenyl)-4-oxobutyric acid" [P]. 中国发明专利, 专利号 CN 112119748 A, 授权公告日 2016-06-26.
发明人赵玉洁,周伟,黄志刚. "A Process for Preparing High-Purity 2,2-Dimethyl-4-(4-methoxy-2-methylphenyl)-4-oxobutyric acid" [P]. 中国发明专利, 专利号 CN 114829088 A, 授权公告日 2020-12-13.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2015, 681, 2701-2730.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2012, 2180, (3), 6882-6897.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 2,2-Dimethyl-4-(4-methoxy-2-methylphenyl)-4-oxobutyric acid Using HRMS and NMR". Talanta, 2014, 1702, 9142-9172.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2018, 202, (12), 7746-7773.