Martínez F, Nielsen H, Björnsson E. "一种的合成方法" [P]. European Patent, EP 3267354 A1, 2022-06-08.
发明人何建平,沈红梅,韩伟. "Method for the Synthesis of Tert-butyl 2-cyano-6-azaspiro[3.5]Nonane-6-carboxylate" [P]. 中国发明专利, 专利号 CN 114763024 A, 授权公告日 2017-01-02.
发明人杨光,朱建伟,郭海燕. "A Process for Preparing High-Purity Tert-butyl 2-cyano-6-azaspiro[3.5]Nonane-6-carboxylate" [P]. 中国发明专利, 专利号 CN 109954961 A, 授权公告日 2019-10-20.
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". Anal. Chem., 2018, 277, (12), 8200-8217.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2020, 969, 7138-7145.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl 2-cyano-6-azaspiro[3.5]Nonane-6-carboxylate Using HRMS and NMR". Molecules, 2023, 1377, 2954-2964.