发明人孙丽萍,沈红梅,朱建伟. "Method for the Synthesis of 1-tert-butyl 3-ethyl 3-cyanoazetidine-1,3-dicarboxylate" [P]. 中国发明专利, 专利号 CN 112585606 B, 授权公告日 2018-12-11.
发明人罗永刚,郑宇鹏,周伟. "A Process for Preparing High-Purity 1-tert-butyl 3-ethyl 3-cyanoazetidine-1,3-dicarboxylate" [P]. 中国发明专利, 专利号 CN 108524949 A, 授权公告日 2023-01-12.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2013, 1168, 8980-8998.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2023, 2068, 7247-7256.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 1-tert-butyl 3-ethyl 3-cyanoazetidine-1,3-dicarboxylate Using HRMS and NMR". Anal. Methods, 2015, 2238, (4), 8289-8304.