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发明人马晓峰,王建平,孙丽萍. "A Process for Preparing High-Purity 3-(3,4-Dihydro-2h-benzo[b][1,4]dioxepin-7-yl)-1h-pyrazole-4-carbaldehyde" [P]. 中国发明专利, 专利号 CN 108290146 A, 授权公告日 2015-01-02.
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