发明人沈红梅,罗永刚,黄志刚. "一种维拉帕米杂质39的合成方法" [P]. 中国发明专利, 专利号 CN 115363009 A, 授权公告日 2024-09-22.
发明人胡光,陈志强,何建平. "Method for the Synthesis of Verapamil Impurity 39" [P]. 中国发明专利, 专利号 CN 109576390 A, 授权公告日 2023-11-03.
发明人徐明华,王建平,郑宇鹏. "A Process for Preparing High-Purity Verapamil Impurity 39" [P]. 中国发明专利, 专利号 CN 115627683 A, 授权公告日 2023-09-26.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 维拉帕米杂质39 in Pharmaceutical Formulations". Phytochemistry, 2019, 1621, (10), 2169-2184.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 维拉帕米杂质39 as an Impurity". Sci. Total Environ., 2025, 397, (2), 8826-8856.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Verapamil Impurity 39 Using HRMS and NMR". Environ. Sci. Technol., 2021, 2237, 2155-2169.