发明人张德明,赵玉洁,韩伟. "Method for the Synthesis of (2R,5S)-7-[(2-Methylpropan-2-yl)oxycarbonyl]-1-oxa-7-azaspiro[4.4]nonane-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109348701 A, 授权公告日 2022-09-01.
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". Food Chem., 2011, 1731, (8), 2659-2686.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2013, 433, (2), 2888-2904.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of (2R,5S)-7-[(2-Methylpropan-2-yl)oxycarbonyl]-1-oxa-7-azaspiro[4.4]nonane-2-carboxylic acid Using HRMS and NMR". J. Chromatogr. A, 2012, 117, (11), 5686-5709.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2013, 453, (12), 875-902.