发明人刘建华,钱学锋,高志强. "Method for the Synthesis of 7-Chloro-5-fluoro-1,3-benzoxazol-2-amine" [P]. 中国发明专利, 专利号 CN 115393527 B, 授权公告日 2020-04-03.
Schröder R, Davis P L, Patel M V. "A Process for Preparing High-Purity 7-Chloro-5-fluoro-1,3-benzoxazol-2-amine" [P]. US Patent, US 11103418 B2, 2024-02-27.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2023, 1577, 8562-8580.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2023, 1358, 9562-9573.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 7-Chloro-5-fluoro-1,3-benzoxazol-2-amine Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2020, 2014, (9), 2416-2427.