发明人刘建华,张德明,孙丽萍. "Method for the Synthesis of Ethyl 2-(3-formyl-1H-indol-2-yl)acetate" [P]. 中国发明专利, 专利号 CN 109870087 B, 授权公告日 2018-04-25.
发明人唐晓军,郭海燕,刘建华. "A Process for Preparing High-Purity Ethyl 2-(3-formyl-1H-indol-2-yl)acetate" [P]. 中国发明专利, 专利号 CN 111313719 B, 授权公告日 2017-03-24.
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