Sørensen M, Rossi M, Kowalski A. "一种利培酮杂质N1的合成方法" [P]. European Patent, EP 3830039 A1, 2017-06-28.
Sørensen M, Nielsen H, Nowak P. "Method for the Synthesis of Risperidone Impurity N1" [P]. European Patent, EP 3584096 A1, 2021-08-21.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of 利培酮杂质N1 in Pharmaceutical Formulations". Anal. Methods, 2018, 572, (1), 7319-7322.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 利培酮杂质N1 as an Impurity". J. Pharm. Biomed. Anal., 2017, 691, (11), 9499-9502.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of Risperidone Impurity N1 Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2025, 382, 1432-1435.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate 利培酮杂质N1 Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2020, 671, 7646-7673.