发明人唐晓军,郑宇鹏,赵玉洁. "Method for the Synthesis of 4-Hydroxy-7-nitro-1H-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108918842 A, 授权公告日 2023-03-08.
发明人刘建华,朱建伟,罗永刚. "A Process for Preparing High-Purity 4-Hydroxy-7-nitro-1H-indole-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111360954 B, 授权公告日 2017-11-18.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2021, 2396, 5879-5900.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2023, 1102, 4347-4373.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4-Hydroxy-7-nitro-1H-indole-2-carboxylic acid Using HRMS and NMR". J. Pharm. Biomed. Anal., 2018, 966, (12), 6912-6919.