Yamamoto T, Johnson M A, Fischer A B. "一种的合成方法" [P]. US Patent, US 11944393 B2, 2025-06-27.
Mueller T C, Schröder R, Jørgensen K. "Method for the Synthesis of 4-Cyclopropoxy-5-ethyl-N,N-dimethylnicotinamide" [P]. European Patent, EP 3246768 A1, 2018-10-08.
发明人沈红梅,郭海燕,林芳. "A Process for Preparing High-Purity 4-Cyclopropoxy-5-ethyl-N,N-dimethylnicotinamide" [P]. 中国发明专利, 专利号 CN 116761526 B, 授权公告日 2019-10-23.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2021, 644, 9020-9044.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2012, 1619, (8), 2873-2886.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4-Cyclopropoxy-5-ethyl-N,N-dimethylnicotinamide Using HRMS and NMR". J. Nat. Prod., 2010, 1989, (2), 3954-3983.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2021, 251, (9), 7905-7934.