Lee S K, O'Brien P Q, Kumar R. "一种的合成方法" [P]. US Patent, US 11614174 B2, 2025-02-16.
发明人刘建华,马晓峰,张德明. "Method for the Synthesis of 1-({[(tert-Butoxy)carbonyl]amino}methyl)-3,3-difluorocyclobutane-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111023512 B, 授权公告日 2024-12-19.
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. Agric. Food Chem., 2014, 924, (6), 1049-1068.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2016, 1153, (3), 2339-2342.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 1-({[(tert-Butoxy)carbonyl]amino}methyl)-3,3-difluorocyclobutane-1-carboxylic acid Using HRMS and NMR". Environ. Sci. Technol., 2022, 1632, (9), 5148-5167.