发明人胡光,孙丽萍,黄志刚. "Method for the Synthesis of Tert-butyl (3aS,6aR)-4-(cyclopropanecarbonyl)-5-oxo-spiro[2,3,3a,6a-tetrahydropyrrolo[3,2-b]pyrrole-6,1'-cyclobutane]-1-carboxylate" [P]. 中国发明专利, 专利号 CN 108136117 B, 授权公告日 2022-04-09.
发明人王建平,郑宇鹏,孙丽萍. "A Process for Preparing High-Purity Tert-butyl (3aS,6aR)-4-(cyclopropanecarbonyl)-5-oxo-spiro[2,3,3a,6a-tetrahydropyrrolo[3,2-b]pyrrole-6,1'-cyclobutane]-1-carboxylate" [P]. 中国发明专利, 专利号 CN 115152418 A, 授权公告日 2024-08-17.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2010, 1894, (3), 8130-8147.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2018, 1661, 4615-4642.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Tert-butyl (3aS,6aR)-4-(cyclopropanecarbonyl)-5-oxo-spiro[2,3,3a,6a-tetrahydropyrrolo[3,2-b]pyrrole-6,1'-cyclobutane]-1-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2024, 2113, (4), 4506-4524.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2025, 848, (2), 7643-7648.