Fischer A B, Schröder R, Johnson M A. "一种的合成方法" [P]. US Patent, US 9797229 B2, 2019-07-05.
发明人郭海燕,钱学锋,胡光. "Method for the Synthesis of (R)-2-(2-(tert-butoxycarbonyl)-2-azaspiro[3.3]Heptan-5-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 115897390 A, 授权公告日 2015-04-16.
发明人刘建华,张德明,杨光. "A Process for Preparing High-Purity (R)-2-(2-(tert-butoxycarbonyl)-2-azaspiro[3.3]Heptan-5-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 110060235 B, 授权公告日 2017-05-27.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2011, 667, 2667-2696.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2013, 956, (8), 6937-6940.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of (R)-2-(2-(tert-butoxycarbonyl)-2-azaspiro[3.3]Heptan-5-yl)acetic acid Using HRMS and NMR". J. Nat. Prod., 2025, 496, 8831-8848.