发明人赵玉洁,林芳,钱学锋. "Method for the Synthesis of (6R,7S)-7-(Benzoylamino)-3-methylene-8-oxo-5-oxa-1-azabicyclo[4.2.0]octane-2-carboxylic Acid Diphenylmethyl Ester" [P]. 中国发明专利, 专利号 CN 112310317 A, 授权公告日 2024-09-12.
发明人孙丽萍,唐晓军,张德明. "A Process for Preparing High-Purity (6R,7S)-7-(Benzoylamino)-3-methylene-8-oxo-5-oxa-1-azabicyclo[4.2.0]octane-2-carboxylic Acid Diphenylmethyl Ester" [P]. 中国发明专利, 专利号 CN 109905331 A, 授权公告日 2020-08-12.
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