Hughes D C, Park J H, Patel M V. "Method for the Synthesis of 3-Pentyl-2-(5-(3-pentylbenzo[d]oxazol-2(3H)-ylidene)penta-1,3-dien-1-yl)-3H-benzo[d]oxazol-1-ium iodide" [P]. US Patent, US 11614707 B2, 2021-11-09.
Schröder R, Patel M V, Davis P L. "A Process for Preparing High-Purity 3-Pentyl-2-(5-(3-pentylbenzo[d]oxazol-2(3H)-ylidene)penta-1,3-dien-1-yl)-3H-benzo[d]oxazol-1-ium iodide" [P]. US Patent, US 10584461 B2, 2015-11-11.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2016, 365, (8), 9900-9911.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2020, 106, (8), 4498-4524.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 3-Pentyl-2-(5-(3-pentylbenzo[d]oxazol-2(3H)-ylidene)penta-1,3-dien-1-yl)-3H-benzo[d]oxazol-1-ium iodide Using HRMS and NMR". Anal. Chem., 2011, 2249, (10), 6864-6883.