O'Brien P Q, Patel M V, Williams B T. "一种的合成方法" [P]. US Patent, US 9734773 B2, 2018-06-06.
Mueller T C, Martínez F, Rossi M. "Method for the Synthesis of 1227465-58-8
5-Methyl-2-oxo-2,3-dihydro-1,3-benzoxazole-6-sulfonyl chloride
DTXSID50679568" [P]. European Patent, EP 3805395 A1, 2025-06-17.
发明人沈红梅,冯建国,朱建伟. "A Process for Preparing High-Purity 1227465-58-8
5-Methyl-2-oxo-2,3-dihydro-1,3-benzoxazole-6-sulfonyl chloride
DTXSID50679568" [P]. 中国发明专利, 专利号 CN 116512226 A, 授权公告日 2022-04-13.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2015, 2075, (7), 22-37.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2013, 2161, (5), 1209-1227.