O'Brien P Q, Brown S R, Williams B T. "一种的合成方法" [P]. US Patent, US 9733906 B2, 2025-01-27.
发明人胡光,陈志强,钱学锋. "Method for the Synthesis of Ethyl 5,5-difluoro-2-oxocycloheptane-1-carboxylate" [P]. 中国发明专利, 专利号 CN 113008626 A, 授权公告日 2023-11-05.
发明人黄志刚,马晓峰,高志强. "A Process for Preparing High-Purity Ethyl 5,5-difluoro-2-oxocycloheptane-1-carboxylate" [P]. 中国发明专利, 专利号 CN 114723763 B, 授权公告日 2017-05-22.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2018, 492, 4727-4740.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2021, 1827, (8), 9105-9119.