发明人胡光,罗永刚,冯建国. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109657876 A, 授权公告日 2017-03-26.
Schröder R, Rossi M, Kowalski A. "Method for the Synthesis of 4-Methyl-2-({[(4-methylphenyl)methyl]carbamoyl}amino)pentanoic acid" [P]. European Patent, EP 3057404 A1, 2025-09-05.
Brown S R, Roberts E F, Kumar R. "A Process for Preparing High-Purity 4-Methyl-2-({[(4-methylphenyl)methyl]carbamoyl}amino)pentanoic acid" [P]. US Patent, US 11933739 B2, 2017-12-23.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2011, 1301, 8227-8238.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2013, 1779, 6038-6048.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 4-Methyl-2-({[(4-methylphenyl)methyl]carbamoyl}amino)pentanoic acid Using HRMS and NMR". J. Chromatogr. A, 2010, 347, 1504-1527.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2013, 2167, (12), 4405-4421.