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发明人何建平,张德明,王建平. "A Process for Preparing High-Purity 1-(2,7-Diazaspiro[4.4]Nonan-2-yl)ethan-1-one hydrochloride" [P]. 中国发明专利, 专利号 CN 108149937 A, 授权公告日 2023-07-04.
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