发明人徐明华,韩伟,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112482524 A, 授权公告日 2025-06-20.
发明人马晓峰,李文辉,周伟. "Method for the Synthesis of 4-(Difluoromethoxy)benzo[d]oxazol-2-ol" [P]. 中国发明专利, 专利号 CN 112411606 A, 授权公告日 2021-05-21.
发明人徐明华,马晓峰,黄志刚. "A Process for Preparing High-Purity 4-(Difluoromethoxy)benzo[d]oxazol-2-ol" [P]. 中国发明专利, 专利号 CN 116005263 B, 授权公告日 2023-09-22.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2015, 1550, (1), 4338-4364.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2023, 688, (12), 8820-8826.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Difluoromethoxy)benzo[d]oxazol-2-ol Using HRMS and NMR". J. Sep. Sci., 2015, 1227, 9205-9226.