发明人王建平,张德明,钱学锋. "Method for the Synthesis of 4-Amino-2H-benzo[b][1,4]thiazin-3(4H)-one 1,1-dioxide" [P]. 中国发明专利, 专利号 CN 112840977 A, 授权公告日 2021-10-17.
发明人张德明,高志强,沈红梅. "A Process for Preparing High-Purity 4-Amino-2H-benzo[b][1,4]thiazin-3(4H)-one 1,1-dioxide" [P]. 中国发明专利, 专利号 CN 109956561 A, 授权公告日 2017-08-09.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2010, 788, 2187-2209.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2015, 1510, (5), 3260-3284.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-2H-benzo[b][1,4]thiazin-3(4H)-one 1,1-dioxide Using HRMS and NMR". Anal. Methods, 2011, 2139, 4292-4315.