Thompson G K, Stevens L M, Hughes D C. "一种的合成方法" [P]. US Patent, US 9839058 B2, 2015-03-26.
发明人杨光,孙丽萍,刘建华. "Method for the Synthesis of N-(3,7-Dimethyl-6-(methylthio)-3,7-dihydro-2H-purin-2-ylidene)methanamine" [P]. 中国发明专利, 专利号 CN 112517640 A, 授权公告日 2017-06-17.
Patel M V, Brown S R, Anderson J P. "A Process for Preparing High-Purity N-(3,7-Dimethyl-6-(methylthio)-3,7-dihydro-2H-purin-2-ylidene)methanamine" [P]. US Patent, US 11560018 B2, 2024-01-10.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2012, 1250, (12), 9619-9631.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2015, 1782, 8869-8875.