Davis P L, Klinger H, Patel M V. "一种的合成方法" [P]. US Patent, US 9178815 B2, 2021-02-11.
Patel M V, Klinger H, Hughes D C. "Method for the Synthesis of 1-Butyl-5-ethyl-1h-pyrazol-4-amine" [P]. US Patent, US 10088169 B2, 2024-09-25.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2012, 681, (6), 6178-6181.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2012, 1851, (7), 7733-7740.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 1-Butyl-5-ethyl-1h-pyrazol-4-amine Using HRMS and NMR". J. Chromatogr. A, 2011, 2007, (2), 6543-6566.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2018, 298, (5), 5427-5436.