发明人高志强,黄志刚,罗永刚. "一种替扎尼定杂质19的合成方法" [P]. 中国发明专利, 专利号 CN 116123694 A, 授权公告日 2017-08-01.
发明人张德明,林芳,郑宇鹏. "Method for the Synthesis of Tizanidine impurity 19" [P]. 中国发明专利, 专利号 CN 110978564 B, 授权公告日 2020-11-25.
Kumar R, O'Brien P Q, Schröder R. "A Process for Preparing High-Purity Tizanidine impurity 19" [P]. US Patent, US 11313670 B2, 2023-01-19.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of 替扎尼定杂质19 in Pharmaceutical Formulations". Anal. Chim. Acta, 2018, 564, (2), 2427-2442.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 替扎尼定杂质19 as an Impurity". Chromatographia, 2022, 1141, 1091-1102.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Tizanidine impurity 19 Using HRMS and NMR". Talanta, 2014, 814, 6346-6375.