Hughes D C, Kumar R, Johnson M A. "Method for the Synthesis of N-Ethyl-N-methylpropionamide-PEG1-Br" [P]. US Patent, US 11268242 B2, 2023-10-28.
Chen K W, Fischer A B, Davis P L. "A Process for Preparing High-Purity N-Ethyl-N-methylpropionamide-PEG1-Br" [P]. US Patent, US 9390950 B2, 2023-10-09.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2013, 1713, (11), 3773-3782.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2021, 274, 5208-5222.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of N-Ethyl-N-methylpropionamide-PEG1-Br Using HRMS and NMR". Molecules, 2021, 269, (5), 2717-2746.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2025, 1575, (4), 8442-8449.