Rossi M, Kowalski A, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3102223 A1, 2023-03-24.
Hughes D C, Mueller T, Kumar R. "Method for the Synthesis of Ethyl 4-oxo-3',4'-dihydro-2'H-spiro[cyclohexane-1,1'-naphthalene]-2,5-diene-4'-carboxylate" [P]. US Patent, US 9683250 B2, 2025-10-18.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2012, 1073, 1781-1798.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2014, 2112, (8), 5886-5915.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-oxo-3',4'-dihydro-2'H-spiro[cyclohexane-1,1'-naphthalene]-2,5-diene-4'-carboxylate Using HRMS and NMR". Anal. Chem., 2020, 636, (8), 4994-5018.