发明人张德明,徐明华,胡光. "Method for the Synthesis of Methyl 5-ethyl-2,5-dimethyl-1,6-dioxaspiro[2.5]octane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 109005496 B, 授权公告日 2019-06-20.
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