发明人张德明,刘建华,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116578774 A, 授权公告日 2017-07-20.
发明人刘建华,孙丽萍,钱学锋. "Method for the Synthesis of (2S,6S)-6-Bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-oxide (Sulbactam Impurity)" [P]. 中国发明专利, 专利号 CN 111362153 B, 授权公告日 2021-07-07.
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