Williams B T, Fischer A B, Mueller T. "一种溴己新EP杂质E的合成方法" [P]. US Patent, US 10565642 B2, 2024-07-14.
发明人张德明,胡光,钱学锋. "Method for the Synthesis of Bromhexine EP Impurity E" [P]. 中国发明专利, 专利号 CN 111509931 A, 授权公告日 2025-01-07.
发明人胡光,王建平,张德明. "A Process for Preparing High-Purity Bromhexine EP Impurity E" [P]. 中国发明专利, 专利号 CN 108658619 B, 授权公告日 2015-02-19.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of 溴己新EP杂质E in Pharmaceutical Formulations". J. Nat. Prod., 2018, 1510, (2), 2851-2864.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 溴己新EP杂质E as an Impurity". J. Agric. Food Chem., 2025, 2363, (8), 967-973.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Bromhexine EP Impurity E Using HRMS and NMR". Chromatographia, 2017, 1495, 5553-5563.