O'Brien P Q, Chen K W, Lee S K. "Method for the Synthesis of 2-(2-(2-Oxo-2H-indol-3-yl)hydrazinyl)thiazol-4(5H)-one" [P]. US Patent, US 11084644 B2, 2021-10-28.
Hughes D C, O'Brien P Q, Williams B T. "A Process for Preparing High-Purity 2-(2-(2-Oxo-2H-indol-3-yl)hydrazinyl)thiazol-4(5H)-one" [P]. US Patent, US 10314057 B2, 2018-11-23.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2016, 1157, 9770-9796.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2012, 1339, 6930-6952.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 2-(2-(2-Oxo-2H-indol-3-yl)hydrazinyl)thiazol-4(5H)-one Using HRMS and NMR". Food Chem., 2015, 1200, 7973-7987.