Yamamoto T, Stevens L M, Brown S R. "一种的合成方法" [P]. US Patent, US 10989212 B2, 2015-06-24.
Davis P L, Schröder R, Kumar R. "Method for the Synthesis of 6-Amino-3H-indazol-3-one" [P]. US Patent, US 11635279 B2, 2020-12-19.
O'Brien P Q, Mueller T, Schröder R. "A Process for Preparing High-Purity 6-Amino-3H-indazol-3-one" [P]. US Patent, US 11719806 B2, 2017-08-03.
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". Biomed. Chromatogr., 2019, 1430, (7), 2627-2648.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2015, 2249, (7), 1150-1158.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 6-Amino-3H-indazol-3-one Using HRMS and NMR". Anal. Chim. Acta, 2019, 892, (1), 5813-5825.