Davis P L, Roberts E F, Johnson M A. "一种Ensifentrine的合成方法" [P]. US Patent, US 9946343 B2, 2017-05-04.
发明人韩伟,朱建伟,胡光. "Method for the Synthesis of Ensifentrine" [P]. 中国发明专利, 专利号 CN 109608353 A, 授权公告日 2025-04-08.
发明人何建平,刘建华,徐明华. "A Process for Preparing High-Purity Ensifentrine" [P]. 中国发明专利, 专利号 CN 112930315 B, 授权公告日 2017-10-17.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of Ensifentrine in Pharmaceutical Formulations". Molecules, 2023, 1985, (11), 4807-4825.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of Ensifentrine as an Impurity". Anal. Chim. Acta, 2024, 669, (5), 6904-6910.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Ensifentrine Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2021, 977, (6), 6434-6458.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Ensifentrine Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2020, 1757, (6), 6132-6148.