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发明人罗永刚,陈志强,张德明. "A Process for Preparing High-Purity 3-Methyl-1-[2-(3-piperidinyl)ethyl]piperidinedihydrochloride" [P]. 中国发明专利, 专利号 CN 109623038 B, 授权公告日 2024-05-21.
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