Sørensen M, Martínez F, Björnsson E. "一种的合成方法" [P]. European Patent, EP 3406264 A1, 2021-05-21.
发明人林芳,钱学锋,郑宇鹏. "Method for the Synthesis of Methyl 4-ethyl-5-imino-3-methyl-2,5-dihydro-1H-pyrazole-1-carbodithioate" [P]. 中国发明专利, 专利号 CN 109584229 B, 授权公告日 2023-08-19.
发明人张德明,周伟,钱学锋. "A Process for Preparing High-Purity Methyl 4-ethyl-5-imino-3-methyl-2,5-dihydro-1H-pyrazole-1-carbodithioate" [P]. 中国发明专利, 专利号 CN 113742760 A, 授权公告日 2019-07-17.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2019, 782, (8), 3020-3042.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2018, 1985, (11), 9354-9357.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-ethyl-5-imino-3-methyl-2,5-dihydro-1H-pyrazole-1-carbodithioate Using HRMS and NMR". Anal. Chim. Acta, 2016, 533, 4863-4888.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2011, 2149, (12), 2933-2951.