Martínez F, Lefèvre J P, Nowak P. "一种的合成方法" [P]. European Patent, EP 3475435 A1, 2015-07-28.
Thompson G K, Chen K W, Yamamoto T. "Method for the Synthesis of 2-Phenyl-2,7-diazaspiro[4.4]Nonane dihydrochloride" [P]. US Patent, US 9040469 B2, 2025-02-22.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2013, 2126, (1), 1454-1457.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2018, 911, (4), 1634-1640.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 2-Phenyl-2,7-diazaspiro[4.4]Nonane dihydrochloride Using HRMS and NMR". Anal. Chim. Acta, 2020, 117, (12), 3457-3461.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2018, 1834, (11), 1473-1478.