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发明人钱学锋,马晓峰,韩伟. "A Process for Preparing High-Purity 1-(1-Hydroxy-2-methyl-6-nitro-1H-indol-3-yl)ethanone" [P]. 中国发明专利, 专利号 CN 116519528 B, 授权公告日 2017-11-02.
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