发明人刘建华,陈志强,冯建国. "Method for the Synthesis of Ethyl 6-oxospiro[2.5]octane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 115535587 A, 授权公告日 2019-09-27.
发明人郭海燕,王建平,沈红梅. "A Process for Preparing High-Purity Ethyl 6-oxospiro[2.5]octane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 109669205 B, 授权公告日 2015-07-16.
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