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发明人黄志刚,孙丽萍,高志强. "A Process for Preparing High-Purity 2-(2-Thia-7-azaspiro[4.4]nonan-7-yl)ethan-1-ol" [P]. 中国发明专利, 专利号 CN 112262154 B, 授权公告日 2015-04-23.
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