发明人郑宇鹏,刘建华,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113933985 A, 授权公告日 2023-11-01.
发明人罗永刚,张德明,刘建华. "Method for the Synthesis of Spiro[cyclopentane-1,3'-indoline]-5'-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117770352 A, 授权公告日 2025-10-01.
发明人陈志强,马晓峰,周伟. "A Process for Preparing High-Purity Spiro[cyclopentane-1,3'-indoline]-5'-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115214969 A, 授权公告日 2023-08-24.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2014, 344, (8), 5664-5667.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2011, 2137, (8), 8459-8473.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Spiro[cyclopentane-1,3'-indoline]-5'-carboxylic acid Using HRMS and NMR". Anal. Chem., 2024, 371, 8751-8759.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2013, 2367, (4), 3097-3113.