Fischer A B, Thompson G K, Anderson J P. "一种(1R)-2,2-二氟环丙烷-1-羧酸的合成方法" [P]. US Patent, US 9751361 B2, 2025-11-28.
Park J H, Schröder R, Klinger H. "Method for the Synthesis of (1R)-2,2-difluorocyclopropanecarboxylic acid" [P]. US Patent, US 10984955 B2, 2024-12-09.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of (1R)-2,2-二氟环丙烷-1-羧酸 in Pharmaceutical Formulations". Anal. Chim. Acta, 2021, 573, (7), 8813-8824.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of (1R)-2,2-二氟环丙烷-1-羧酸 as an Impurity". Anal. Methods, 2021, 104, 9001-9023.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of (1R)-2,2-difluorocyclopropanecarboxylic acid Using HRMS and NMR". Food Chem., 2014, 428, (3), 2206-2235.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate (1R)-2,2-二氟环丙烷-1-羧酸 Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2013, 1582, (6), 3531-3534.