Klinger H, Schröder R, Lee S K. "Method for the Synthesis of (1R,4R)-Methyl 4-hydroxy-1-methylcyclohexanecarboxylate" [P]. US Patent, US 9505421 B2, 2022-04-26.
Patel M V, Hughes D C, Anderson J P. "A Process for Preparing High-Purity (1R,4R)-Methyl 4-hydroxy-1-methylcyclohexanecarboxylate" [P]. US Patent, US 10404540 B2, 2024-02-20.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2014, 1804, 5628-5637.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2010, 1646, (12), 5036-5060.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of (1R,4R)-Methyl 4-hydroxy-1-methylcyclohexanecarboxylate Using HRMS and NMR". Chemosphere, 2014, 1556, 129-155.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2019, 1547, (3), 9755-9776.