发明人沈红梅,郑宇鹏,黄志刚. "Method for the Synthesis of Ethyl 2-(2-oxaspiro[3.3]Heptan-6-ylidene)acetate" [P]. 中国发明专利, 专利号 CN 112697927 B, 授权公告日 2015-04-08.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2020, 1329, 3781-3786.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2014, 420, (3), 1694-1699.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-(2-oxaspiro[3.3]Heptan-6-ylidene)acetate Using HRMS and NMR". J. Chromatogr. A, 2020, 1973, 7534-7541.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2017, 1943, (7), 1861-1874.