Schröder R, Nielsen H, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3771868 A1, 2019-06-15.
Sørensen M, Nowak P, Johansson L. "Method for the Synthesis of 3-Ethyl-4-(2-methylpent-2-enoyl)piperazin-2-one" [P]. European Patent, EP 3962689 A1, 2017-11-17.
发明人胡光,徐明华,朱建伟. "A Process for Preparing High-Purity 3-Ethyl-4-(2-methylpent-2-enoyl)piperazin-2-one" [P]. 中国发明专利, 专利号 CN 117987428 B, 授权公告日 2017-12-27.
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". Anal. Chem., 2018, 2447, (11), 1577-1585.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2010, 2326, 5709-5724.