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发明人王建平,陈志强,张德明. "A Process for Preparing High-Purity (+/-)-tert-Butyl 2-oxo-4-vinylazetidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 113335192 A, 授权公告日 2019-10-22.
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