Nielsen H, Rossi M, Jørgensen K. "一种的合成方法" [P]. European Patent, EP 3986214 A1, 2025-02-18.
发明人李文辉,林芳,何建平. "Method for the Synthesis of (R)-5-Aza-spiro[2.4]heptane-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113465822 B, 授权公告日 2019-04-20.
发明人张德明,周伟,罗永刚. "A Process for Preparing High-Purity (R)-5-Aza-spiro[2.4]heptane-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116800034 B, 授权公告日 2022-02-01.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2024, 1119, (11), 3783-3786.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2021, 1485, 6801-6813.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of (R)-5-Aza-spiro[2.4]heptane-7-carboxylic acid Using HRMS and NMR". Talanta, 2011, 1247, 9992-10002.