发明人王建平,周伟,陈志强. "一种N/A的合成方法" [P]. 中国发明专利, 专利号 CN 114761577 A, 授权公告日 2021-10-19.
发明人陈志强,郑宇鹏,马晓峰. "Method for the Synthesis of N,N-Dimethyl(methylsulfanyl)methanimidamide" [P]. 中国发明专利, 专利号 CN 108569937 B, 授权公告日 2023-05-16.
发明人高志强,何建平,孙丽萍. "A Process for Preparing High-Purity N,N-Dimethyl(methylsulfanyl)methanimidamide" [P]. 中国发明专利, 专利号 CN 111655575 A, 授权公告日 2020-06-22.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of N/A in Pharmaceutical Formulations". Biomed. Chromatogr., 2025, 891, 6684-6710.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of N/A as an Impurity". Food Chem., 2013, 1660, (7), 9976-9994.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of N,N-Dimethyl(methylsulfanyl)methanimidamide Using HRMS and NMR". Sci. Total Environ., 2019, 2235, 9079-9102.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate N/A Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2023, 1943, (3), 9775-9802.