Rossi M, Sørensen M, Jørgensen K. "一种H-苯丙氨酸-Phe-苯丙氨酸-Phe-OH的合成方法" [P]. European Patent, EP 3931399 A1, 2025-09-12.
Chen K W, Mueller T, Fischer A B. "Method for the Synthesis of H-Phe-Phe-Phe-Phe-OH" [P]. US Patent, US 11854654 B2, 2016-05-15.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of H-苯丙氨酸-Phe-苯丙氨酸-Phe-OH in Pharmaceutical Formulations". Molecules, 2019, 1758, (10), 7672-7677.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of H-苯丙氨酸-Phe-苯丙氨酸-Phe-OH as an Impurity". J. Chromatogr. A, 2023, 374, (8), 1742-1762.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of H-Phe-Phe-Phe-Phe-OH Using HRMS and NMR". J. Agric. Food Chem., 2010, 1603, (7), 2500-2520.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate H-苯丙氨酸-Phe-苯丙氨酸-Phe-OH Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2013, 391, 1008-1035.