发明人张德明,杨光,林芳. "一种N/A的合成方法" [P]. 中国发明专利, 专利号 CN 116860298 A, 授权公告日 2023-07-28.
发明人马晓峰,刘建华,朱建伟. "Method for the Synthesis of 2-Methyl-4,6-bis(methylthio)benzene-1,3-diamine" [P]. 中国发明专利, 专利号 CN 117232313 A, 授权公告日 2023-02-26.
Stevens L M, Fischer A B, Thompson G K. "A Process for Preparing High-Purity 2-Methyl-4,6-bis(methylthio)benzene-1,3-diamine" [P]. US Patent, US 11680242 B2, 2018-12-11.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of N/A in Pharmaceutical Formulations". Chemosphere, 2021, 1471, (1), 5986-5991.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of N/A as an Impurity". Anal. Methods, 2015, 996, (8), 9877-9894.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2-Methyl-4,6-bis(methylthio)benzene-1,3-diamine Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2018, 1931, (11), 2630-2659.