Yamamoto T, Kumar R, Fischer A B. "一种的合成方法" [P]. US Patent, US 10054159 B2, 2024-07-26.
发明人何建平,胡光,黄志刚. "Method for the Synthesis of 4-Nitrobenzyl[2r-(2alpha,5beta,6alpha,7beta)]-3-methylene-8-oxo-7-(phenoxyacetamido)-5-thia-1-azabicyclo[4.2.0]octane-2-carboxylate5-oxide" [P]. 中国发明专利, 专利号 CN 114710161 A, 授权公告日 2019-05-07.
发明人郭海燕,徐明华,张德明. "A Process for Preparing High-Purity 4-Nitrobenzyl[2r-(2alpha,5beta,6alpha,7beta)]-3-methylene-8-oxo-7-(phenoxyacetamido)-5-thia-1-azabicyclo[4.2.0]octane-2-carboxylate5-oxide" [P]. 中国发明专利, 专利号 CN 117421774 B, 授权公告日 2020-02-01.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2016, 1277, 978-986.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2025, 2047, (6), 516-543.