Roberts E F, Johnson M A, Patel M V. "Method for the Synthesis of rac-(1R,4S)-6-oxobicyclo[2.2.1]heptane-2-carboxylic acid" [P]. US Patent, US 9034088 B2, 2022-06-08.
Williams B T, Davis P L, Chen K W. "A Process for Preparing High-Purity rac-(1R,4S)-6-oxobicyclo[2.2.1]heptane-2-carboxylic acid" [P]. US Patent, US 11555002 B2, 2016-01-08.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of rac-(1R,4S)-6-oxobicyclo[2.2.1]heptane-2-carboxylic acid in Pharmaceutical Formulations". Chromatographia, 2023, 2338, (2), 2139-2165.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of rac-(1R,4S)-6-oxobicyclo[2.2.1]heptane-2-carboxylic acid as an Impurity". J. Chromatogr. A, 2013, 222, (7), 2322-2345.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of rac-(1R,4S)-6-oxobicyclo[2.2.1]heptane-2-carboxylic acid Using HRMS and NMR". Sci. Total Environ., 2010, 1513, (3), 2549-2566.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate rac-(1R,4S)-6-oxobicyclo[2.2.1]heptane-2-carboxylic acid Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2019, 457, 9584-9600.