Hughes D C, Davis P L, O'Brien P Q. "Method for the Synthesis of Pinaverium Impurity 8" [P]. US Patent, US 10990491 B2, 2015-09-22.
Lefèvre J P, Björnsson E, Jørgensen K. "A Process for Preparing High-Purity Pinaverium Impurity 8" [P]. European Patent, EP 3670154 A1, 2015-09-04.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of 匹维溴铵杂质8 in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2024, 1067, (12), 1244-1272.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of 匹维溴铵杂质8 as an Impurity". Talanta, 2011, 2103, (5), 9384-9389.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Pinaverium Impurity 8 Using HRMS and NMR". J. Pharm. Biomed. Anal., 2011, 1901, 8311-8322.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate 匹维溴铵杂质8 Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2022, 650, 8720-8730.