Kumar R, O'Brien P Q, Park J H. "Method for the Synthesis of 1-Cyclohexyl-3-(1-(hydroxymethyl)cyclopentyl)urea" [P]. US Patent, US 11303569 B2, 2016-06-19.
Thompson G K, Anderson J P, Patel M V. "A Process for Preparing High-Purity 1-Cyclohexyl-3-(1-(hydroxymethyl)cyclopentyl)urea" [P]. US Patent, US 11310934 B2, 2016-03-19.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2011, 2249, 1628-1651.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2010, 2423, (6), 5575-5593.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 1-Cyclohexyl-3-(1-(hydroxymethyl)cyclopentyl)urea Using HRMS and NMR". Anal. Chem., 2016, 2199, (6), 545-557.