O'Brien P Q, Park J H, Roberts E F. "一种的合成方法" [P]. US Patent, US 10528939 B2, 2017-07-04.
Yamamoto T, Stevens L M, Roberts E F. "Method for the Synthesis of Methyl 6-isopropyl-2-methyl-1-oxaspiro[2.5]octane-2-carboxylate" [P]. US Patent, US 11789675 B2, 2018-05-03.
Mueller T C, Johansson L, Björnsson E. "A Process for Preparing High-Purity Methyl 6-isopropyl-2-methyl-1-oxaspiro[2.5]octane-2-carboxylate" [P]. European Patent, EP 3229496 A1, 2020-05-27.
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". J. Pharm. Biomed. Anal., 2023, 1649, 1491-1514.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2025, 1478, (9), 300-327.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 6-isopropyl-2-methyl-1-oxaspiro[2.5]octane-2-carboxylate Using HRMS and NMR". Anal. Chem., 2020, 1851, (4), 8895-8918.