Anderson J P, Park J H, Stevens L M. "一种9H-咔唑-1-羧酸的合成方法" [P]. US Patent, US 9188247 B2, 2023-01-15.
发明人徐明华,沈红梅,李文辉. "Method for the Synthesis of 9H-Carbazole-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116813967 B, 授权公告日 2020-09-14.
发明人马晓峰,钱学锋,黄志刚. "A Process for Preparing High-Purity 9H-Carbazole-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117201792 A, 授权公告日 2019-05-13.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 9H-咔唑-1-羧酸 in Pharmaceutical Formulations". Anal. Chem., 2017, 132, (11), 2002-2008.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 9H-咔唑-1-羧酸 as an Impurity". J. Chromatogr. A, 2025, 2306, 8337-8366.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 9H-Carbazole-1-carboxylic acid Using HRMS and NMR". J. Nat. Prod., 2012, 1827, (7), 5521-5547.