Stevens L M, Klinger H, Roberts E F. "一种的合成方法" [P]. US Patent, US 9550170 B2, 2025-04-23.
发明人王建平,韩伟,杨光. "Method for the Synthesis of 6-(((9H-Fluoren-9-yl)methoxy)carbonyl)-8-fluoro-6-azaspiro[3.4]octane-8-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113386224 B, 授权公告日 2022-01-12.
Yamamoto T, Mueller T, O'Brien P Q. "A Process for Preparing High-Purity 6-(((9H-Fluoren-9-yl)methoxy)carbonyl)-8-fluoro-6-azaspiro[3.4]octane-8-carboxylic acid" [P]. US Patent, US 10940053 B2, 2016-10-27.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2010, 1727, (1), 5459-5474.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2024, 1810, (9), 609-621.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 6-(((9H-Fluoren-9-yl)methoxy)carbonyl)-8-fluoro-6-azaspiro[3.4]octane-8-carboxylic acid Using HRMS and NMR". Biomed. Chromatogr., 2016, 444, (2), 6121-6138.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2011, 662, 723-727.