发明人郭海燕,赵玉洁,钱学锋. "Method for the Synthesis of Pinaverium Bromide Impurity 20" [P]. 中国发明专利, 专利号 CN 117087000 A, 授权公告日 2021-06-24.
发明人林芳,钱学锋,冯建国. "A Process for Preparing High-Purity Pinaverium Bromide Impurity 20" [P]. 中国发明专利, 专利号 CN 108530837 B, 授权公告日 2021-10-02.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of 匹维溴铵溴化物杂质20 in Pharmaceutical Formulations". Molecules, 2020, 1151, (12), 8490-8520.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 匹维溴铵溴化物杂质20 as an Impurity". J. Pharm. Biomed. Anal., 2023, 2310, (5), 4793-4802.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of Pinaverium Bromide Impurity 20 Using HRMS and NMR". Talanta, 2015, 1840, (10), 9252-9265.