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发明人唐晓军,徐明华,罗永刚. "Method for the Synthesis of 3-(((3-Methoxyphenyl)amino)methylene)-1,5-dioxaspiro[5.5]undecane-2,4-dione" [P]. 中国发明专利, 专利号 CN 110249186 A, 授权公告日 2017-07-06.
Chen K W, Yamamoto T, Johnson M A. "A Process for Preparing High-Purity 3-(((3-Methoxyphenyl)amino)methylene)-1,5-dioxaspiro[5.5]undecane-2,4-dione" [P]. US Patent, US 9096407 B2, 2015-08-25.
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