发明人罗永刚,张德明,黄志刚. "Method for the Synthesis of n-Cyclopentyl-4-methyl-2-ureidopentanamide" [P]. 中国发明专利, 专利号 CN 108393214 B, 授权公告日 2016-12-10.
发明人郭海燕,马晓峰,周伟. "A Process for Preparing High-Purity n-Cyclopentyl-4-methyl-2-ureidopentanamide" [P]. 中国发明专利, 专利号 CN 108250651 A, 授权公告日 2016-06-04.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2021, 2155, 5137-5149.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2019, 1322, (12), 1205-1224.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of n-Cyclopentyl-4-methyl-2-ureidopentanamide Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2022, 701, (8), 3489-3508.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2016, 856, (4), 1314-1343.