Davis P L, Brown S R, Stevens L M. "一种的合成方法" [P]. US Patent, US 9949654 B2, 2016-07-27.
发明人杨光,郑宇鹏,罗永刚. "Method for the Synthesis of 1-(2-Pyridyl)piperazine derivative of 1,6-HDI" [P]. 中国发明专利, 专利号 CN 116810577 B, 授权公告日 2021-07-21.
Schröder R, Lefèvre J P, Mueller T C. "A Process for Preparing High-Purity 1-(2-Pyridyl)piperazine derivative of 1,6-HDI" [P]. European Patent, EP 3599553 A1, 2021-07-06.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2022, 667, (7), 929-935.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2015, 2160, (9), 2221-2232.