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发明人马晓峰,杨光,韩伟. "Method for the Synthesis of (6R-trans)-7-(Benzoylamino)-3-methyl-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 113217475 A, 授权公告日 2025-01-09.
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