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发明人徐明华,周伟,孙丽萍. "A Process for Preparing High-Purity 1-Hydroxy-1,3-dihydrobenzo[c][1,2]oxaborole-7-carbonitrile" [P]. 中国发明专利, 专利号 CN 115471362 B, 授权公告日 2015-03-03.
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