Schröder R, Jørgensen K, Mueller T C. "Method for the Synthesis of 4-(3-Methyl-2,3-dihydro-1H-pyrrolizin-5-yl)but-3-en-2-one" [P]. European Patent, EP 3589247 A1, 2018-08-24.
Williams B T, O'Brien P Q, Thompson G K. "A Process for Preparing High-Purity 4-(3-Methyl-2,3-dihydro-1H-pyrrolizin-5-yl)but-3-en-2-one" [P]. US Patent, US 11235820 B2, 2015-05-24.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2020, 1338, (1), 5508-5527.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2021, 731, 7450-7453.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 4-(3-Methyl-2,3-dihydro-1H-pyrrolizin-5-yl)but-3-en-2-one Using HRMS and NMR". Chromatographia, 2017, 541, 1854-1877.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2017, 692, (12), 9814-9842.