Chen K W, Stevens L M, Fischer A B. "Method for the Synthesis of 9H-fluoren-3-amine" [P]. US Patent, US 11553607 B2, 2019-10-02.
Park J H, Kumar R, Lee S K. "A Process for Preparing High-Purity 9H-fluoren-3-amine" [P]. US Patent, US 10513452 B2, 2020-05-15.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of 9H-fluoren-3-amine in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2022, 2146, (6), 3136-3148.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 9H-fluoren-3-amine as an Impurity". Chromatographia, 2014, 2227, 2905-2912.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 9H-fluoren-3-amine Using HRMS and NMR". Chemosphere, 2018, 999, (6), 5871-5896.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate 9H-fluoren-3-amine Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2020, 1364, (9), 3369-3387.