Yamamoto T, Davis P L, Chen K W. "一种的合成方法" [P]. US Patent, US 10646909 B2, 2023-11-18.
发明人马晓峰,赵玉洁,黄志刚. "Method for the Synthesis of 9-((1-Methyl-1H-pyrazol-4-yl)sulfonyl)-1,5-dioxa-9-azaspiro[5.5]undecane" [P]. 中国发明专利, 专利号 CN 115612203 B, 授权公告日 2017-08-01.
发明人刘建华,杨光,陈志强. "A Process for Preparing High-Purity 9-((1-Methyl-1H-pyrazol-4-yl)sulfonyl)-1,5-dioxa-9-azaspiro[5.5]undecane" [P]. 中国发明专利, 专利号 CN 117444600 A, 授权公告日 2020-11-20.
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". J. Chromatogr. A, 2018, 1231, (10), 9772-9788.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2016, 322, (10), 4547-4552.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 9-((1-Methyl-1H-pyrazol-4-yl)sulfonyl)-1,5-dioxa-9-azaspiro[5.5]undecane Using HRMS and NMR". Chromatographia, 2013, 541, (7), 4891-4906.