Chen K W, Park J H, Patel M V. "一种的合成方法" [P]. US Patent, US 10727837 B2, 2020-03-26.
Johnson M A, Roberts E F, Thompson G K. "Method for the Synthesis of (6R,7S)-7-(Benzoylamino)-3-(chloromethyl)-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester" [P]. US Patent, US 9951955 B2, 2018-04-27.
发明人冯建国,马晓峰,徐明华. "A Process for Preparing High-Purity (6R,7S)-7-(Benzoylamino)-3-(chloromethyl)-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester" [P]. 中国发明专利, 专利号 CN 113034233 A, 授权公告日 2017-03-16.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2022, 1997, (8), 5357-5371.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2014, 2188, (6), 796-818.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of (6R,7S)-7-(Benzoylamino)-3-(chloromethyl)-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester Using HRMS and NMR". Phytochemistry, 2020, 899, (12), 4903-4926.