发明人马晓峰,孙丽萍,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113477871 A, 授权公告日 2020-07-22.
发明人黄志刚,冯建国,唐晓军. "Method for the Synthesis of 3-(4-Methylphenyl)-1,4-diazaspiro[4.6]undec-3-en-2-one" [P]. 中国发明专利, 专利号 CN 117193170 B, 授权公告日 2020-03-09.
Mueller T C, Lefèvre J P, Sørensen M. "A Process for Preparing High-Purity 3-(4-Methylphenyl)-1,4-diazaspiro[4.6]undec-3-en-2-one" [P]. European Patent, EP 3663922 A1, 2016-03-28.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Nat. Prod., 2022, 551, (9), 7615-7633.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2019, 1375, 652-661.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 3-(4-Methylphenyl)-1,4-diazaspiro[4.6]undec-3-en-2-one Using HRMS and NMR". Chromatographia, 2023, 1760, (3), 327-357.