Schröder R, Williams B T, Johnson M A. "一种的合成方法" [P]. US Patent, US 10521984 B2, 2020-03-07.
Davis P L, Kumar R, Klinger H. "Method for the Synthesis of (E)-3-(T-BUtoxy-peg3-ethylcarbamoyl)acrylic acid" [P]. US Patent, US 10656536 B2, 2024-09-04.
发明人徐明华,郑宇鹏,韩伟. "A Process for Preparing High-Purity (E)-3-(T-BUtoxy-peg3-ethylcarbamoyl)acrylic acid" [P]. 中国发明专利, 专利号 CN 116517176 B, 授权公告日 2015-05-21.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2020, 415, 4185-4211.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2015, 1464, (8), 6346-6363.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of (E)-3-(T-BUtoxy-peg3-ethylcarbamoyl)acrylic acid Using HRMS and NMR". Anal. Chem., 2011, 2259, 648-669.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2015, 236, 8146-8150.