Stevens L M, Lee S K, Mueller T. "一种戊乙奎醚杂质9的合成方法" [P]. US Patent, US 9381190 B2, 2025-02-11.
发明人马晓峰,张德明,钱学锋. "Method for the Synthesis of Penehyclidine Impurity 9" [P]. 中国发明专利, 专利号 CN 114339155 A, 授权公告日 2016-07-25.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of 戊乙奎醚杂质9 in Pharmaceutical Formulations". Anal. Chem., 2020, 505, (5), 322-334.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of 戊乙奎醚杂质9 as an Impurity". J. Agric. Food Chem., 2016, 1228, 8357-8367.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Penehyclidine Impurity 9 Using HRMS and NMR". Sci. Total Environ., 2017, 2146, 6326-6343.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate 戊乙奎醚杂质9 Profile in Drug Substances According to ICH Guidelines". Food Chem., 2017, 792, (5), 3901-3919.