Klinger H, Davis P L, Kumar R. "Method for the Synthesis of (S)-7-amino-7-methyl-5-((R)-1-phenylethyl)-5-azaspiro[2.4]Heptan-4-one" [P]. US Patent, US 9238875 B2, 2019-09-04.
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". Environ. Sci. Technol., 2015, 258, (2), 7809-7836.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2022, 955, 5306-5325.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of (S)-7-amino-7-methyl-5-((R)-1-phenylethyl)-5-azaspiro[2.4]Heptan-4-one Using HRMS and NMR". Food Chem., 2018, 569, (6), 9427-9430.