Anderson J P, Kumar R, Mueller T. "Method for the Synthesis of di-tert-Butyl 2-amino-6,7-dihydro-5H-pyrimido[5,4-e][1,4]diazepine-5,8(9H)-dicarboxylate" [P]. US Patent, US 10245337 B2, 2022-06-02.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2011, 959, (12), 9617-9635.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2017, 1038, 9654-9662.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of di-tert-Butyl 2-amino-6,7-dihydro-5H-pyrimido[5,4-e][1,4]diazepine-5,8(9H)-dicarboxylate Using HRMS and NMR". Anal. Chem., 2017, 1352, (3), 7690-7703.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2025, 1871, 8762-8773.