Kumar R, Davis P L, Thompson G K. "Method for the Synthesis of Metformin Impurity 34" [P]. US Patent, US 11553836 B2, 2024-12-08.
发明人高志强,朱建伟,罗永刚. "A Process for Preparing High-Purity Metformin Impurity 34" [P]. 中国发明专利, 专利号 CN 108358494 B, 授权公告日 2024-12-26.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of 二甲双胍杂质34 in Pharmaceutical Formulations". Anal. Chem., 2019, 211, 74-92.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of 二甲双胍杂质34 as an Impurity". Talanta, 2015, 2259, 5646-5662.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of Metformin Impurity 34 Using HRMS and NMR". Anal. Chim. Acta, 2015, 1894, (4), 5134-5137.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 二甲双胍杂质34 Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2014, 124, (6), 3833-3846.