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发明人孙丽萍,高志强,冯建国. "A Process for Preparing High-Purity Tert-butyl 8-oxo-6-oxa-2-azaspiro[3.4]Octane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112047344 A, 授权公告日 2024-08-13.
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