Hughes D C, Yamamoto T, Brown S R. "一种的合成方法" [P]. US Patent, US 10860107 B2, 2015-02-27.
Thompson G K, Kumar R, Hughes D C. "Method for the Synthesis of 7,7-Dimethyl-5H,7H-furo[3,4-d]pyrimidin-2-amine" [P]. US Patent, US 9095445 B2, 2024-08-13.
Johnson M A, Fischer A B, Mueller T. "A Process for Preparing High-Purity 7,7-Dimethyl-5H,7H-furo[3,4-d]pyrimidin-2-amine" [P]. US Patent, US 10169350 B2, 2019-10-08.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2014, 889, (4), 4092-4099.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2015, 2021, 394-419.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 7,7-Dimethyl-5H,7H-furo[3,4-d]pyrimidin-2-amine Using HRMS and NMR". Environ. Sci. Technol., 2018, 1224, 4067-4092.