发明人张德明,何建平,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115640835 A, 授权公告日 2022-02-02.
发明人刘建华,陈志强,郭海燕. "Method for the Synthesis of Tizanidine Guanidine Impurity" [P]. 中国发明专利, 专利号 CN 115764703 A, 授权公告日 2016-01-09.
发明人李文辉,郭海燕,韩伟. "A Process for Preparing High-Purity Tizanidine Guanidine Impurity" [P]. 中国发明专利, 专利号 CN 109845501 A, 授权公告日 2017-05-25.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2019, 881, (11), 3403-3421.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2019, 640, 5309-5328.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Tizanidine Guanidine Impurity Using HRMS and NMR". Molecules, 2021, 1540, 3522-3546.