Chen K W, Roberts E F, Yamamoto T. "一种的合成方法" [P]. US Patent, US 9788253 B2, 2019-01-02.
Schröder R, Fischer A B, Yamamoto T. "Method for the Synthesis of 6-(4-Chloro-2,6-difluorophenyl)-1-oxa-6-azaspiro[2.5]Octane" [P]. US Patent, US 10510460 B2, 2022-12-12.
发明人胡光,杨光,赵玉洁. "A Process for Preparing High-Purity 6-(4-Chloro-2,6-difluorophenyl)-1-oxa-6-azaspiro[2.5]Octane" [P]. 中国发明专利, 专利号 CN 108758568 A, 授权公告日 2023-11-26.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2020, 195, (1), 9165-9177.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2020, 1617, (6), 4675-4683.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 6-(4-Chloro-2,6-difluorophenyl)-1-oxa-6-azaspiro[2.5]Octane Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2022, 408, (5), 1623-1629.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2011, 1363, 8292-8310.