发明人冯建国,沈红梅,黄志刚. "Method for the Synthesis of 3,5-Dimethylmorpholine-4-carboximidamide hemisulfate" [P]. 中国发明专利, 专利号 CN 115511723 A, 授权公告日 2021-08-18.
Anderson J P, Schröder R, Patel M V. "A Process for Preparing High-Purity 3,5-Dimethylmorpholine-4-carboximidamide hemisulfate" [P]. US Patent, US 11912735 B2, 2017-09-20.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of N/A in Pharmaceutical Formulations". Sci. Total Environ., 2025, 437, 1028-1055.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of N/A as an Impurity". J. Agric. Food Chem., 2016, 2051, (4), 529-558.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 3,5-Dimethylmorpholine-4-carboximidamide hemisulfate Using HRMS and NMR". Talanta, 2011, 2017, (5), 2716-2743.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate N/A Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2020, 1343, (11), 6782-6790.