Schröder R, Kowalski A, Martínez F. "一种的合成方法" [P]. European Patent, EP 3699278 A1, 2024-12-11.
Fischer A B, Yamamoto T, Thompson G K. "Method for the Synthesis of (S)-2-(8-(Tert-butoxycarbonyl)-1-oxo-2,8-diazaspiro[4.5]decan-2-yl)-3-methylbutanoic acid" [P]. US Patent, US 11623533 B2, 2017-01-27.
发明人韩伟,郑宇鹏,高志强. "A Process for Preparing High-Purity (S)-2-(8-(Tert-butoxycarbonyl)-1-oxo-2,8-diazaspiro[4.5]decan-2-yl)-3-methylbutanoic acid" [P]. 中国发明专利, 专利号 CN 109374515 B, 授权公告日 2016-03-22.
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". Chromatographia, 2020, 993, 3733-3748.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2014, 781, 589-599.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of (S)-2-(8-(Tert-butoxycarbonyl)-1-oxo-2,8-diazaspiro[4.5]decan-2-yl)-3-methylbutanoic acid Using HRMS and NMR". J. Sep. Sci., 2012, 2269, 9851-9865.