发明人胡光,张德明,罗永刚. "Method for the Synthesis of (S)-6-(2-(7-bromo-9,9-difluoro-9H-fluoren-2-yl)-2-oxoethyl) 5-tert-butyl 5-azaspiro[2.4]heptane-5,6-dicarboxylate" [P]. 中国发明专利, 专利号 CN 111374769 A, 授权公告日 2020-11-01.
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". Molecules, 2014, 680, 421-426.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2022, 1374, 3094-3100.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of (S)-6-(2-(7-bromo-9,9-difluoro-9H-fluoren-2-yl)-2-oxoethyl) 5-tert-butyl 5-azaspiro[2.4]heptane-5,6-dicarboxylate Using HRMS and NMR". Food Chem., 2017, 1289, (10), 5094-5104.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2018, 821, (4), 963-989.