O'Brien P Q, Klinger H, Schröder R. "一种的合成方法" [P]. US Patent, US 11541142 B2, 2024-11-24.
Mueller T, Yamamoto T, Hughes D C. "Method for the Synthesis of 2-(1-Methyl-1H-pyrazol-4-yl)-2,7-diazaspiro[4.4]nonan-3-one" [P]. US Patent, US 11208566 B2, 2016-07-15.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2019, 593, 9657-9673.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2010, 1629, 7760-7786.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 2-(1-Methyl-1H-pyrazol-4-yl)-2,7-diazaspiro[4.4]nonan-3-one Using HRMS and NMR". Sci. Total Environ., 2019, 2144, (2), 5370-5396.