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发明人罗永刚,钱学锋,徐明华. "Method for the Synthesis of Methyl 8-methyl-1-thia-4,8-diazaspiro[4.5]decane-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110017766 B, 授权公告日 2022-02-21.
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