Davis P L, Roberts E F, Fischer A B. "Method for the Synthesis of 4'-Oxo-3',4'-dihydro-1'H-spiro[cyclopentane-1,2'-quinazoline]-5'-carbonitrile" [P]. US Patent, US 11526049 B2, 2022-08-12.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2025, 1832, (3), 8932-8938.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2021, 1526, 5869-5877.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 4'-Oxo-3',4'-dihydro-1'H-spiro[cyclopentane-1,2'-quinazoline]-5'-carbonitrile Using HRMS and NMR". Anal. Chem., 2024, 2265, (9), 4007-4034.