Mueller T, Johnson M A, Stevens L M. "Method for the Synthesis of 2-(cyclopropylamino)-2-(4-hydroxyphenyl)acetic acid" [P]. US Patent, US 9948325 B2, 2019-06-24.
发明人韩伟,杨光,马晓峰. "A Process for Preparing High-Purity 2-(cyclopropylamino)-2-(4-hydroxyphenyl)acetic acid" [P]. 中国发明专利, 专利号 CN 116384980 B, 授权公告日 2022-10-01.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of 2-(cyclopropylamino)-2-(4-hydroxyphenyl)acetic acid in Pharmaceutical Formulations". Anal. Chem., 2010, 1019, (7), 4426-4430.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2-(cyclopropylamino)-2-(4-hydroxyphenyl)acetic acid as an Impurity". Environ. Sci. Technol., 2017, 1817, (1), 1811-1840.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 2-(cyclopropylamino)-2-(4-hydroxyphenyl)acetic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2018, 1255, (7), 8792-8818.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate 2-(cyclopropylamino)-2-(4-hydroxyphenyl)acetic acid Profile in Drug Substances According to ICH Guidelines". Talanta, 2016, 1313, 8499-8511.