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发明人徐明华,杨光,韩伟. "A Process for Preparing High-Purity 3-(1,4-Dioxaspiro[4.5]dec-7-en-8-yl)-1h-indole-5-carbonitrile" [P]. 中国发明专利, 专利号 CN 117588669 B, 授权公告日 2024-10-02.
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