发明人徐明华,高志强,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113935873 A, 授权公告日 2017-04-18.
发明人高志强,唐晓军,陈志强. "Method for the Synthesis of 6-Amino-7,9-dimethyl-9H-purin-7-ium chloride" [P]. 中国发明专利, 专利号 CN 117472530 B, 授权公告日 2019-02-09.
发明人罗永刚,韩伟,郭海燕. "A Process for Preparing High-Purity 6-Amino-7,9-dimethyl-9H-purin-7-ium chloride" [P]. 中国发明专利, 专利号 CN 117923312 A, 授权公告日 2017-10-19.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2012, 1254, 6705-6731.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2024, 2247, (6), 205-219.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 6-Amino-7,9-dimethyl-9H-purin-7-ium chloride Using HRMS and NMR". Anal. Methods, 2010, 185, 2928-2956.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2017, 756, (5), 8935-8954.