发明人刘建华,郭海燕,朱建伟. "Method for the Synthesis of (6R,7R)-7-Amino-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester HCl" [P]. 中国发明专利, 专利号 CN 113513626 A, 授权公告日 2025-02-02.
发明人黄志刚,赵玉洁,罗永刚. "A Process for Preparing High-Purity (6R,7R)-7-Amino-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester HCl" [P]. 中国发明专利, 专利号 CN 117575922 A, 授权公告日 2019-03-19.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2015, 605, 6374-6403.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2024, 797, (5), 3658-3665.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of (6R,7R)-7-Amino-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester HCl Using HRMS and NMR". J. Sep. Sci., 2011, 2453, (6), 8916-8934.