发明人李文辉,徐明华,朱建伟. "Method for the Synthesis of Ethyl 2-(2-oxo-2,3-dihydro-1H-indol-3-yl)acetate" [P]. 中国发明专利, 专利号 CN 109288022 A, 授权公告日 2018-06-08.
发明人徐明华,郑宇鹏,陈志强. "A Process for Preparing High-Purity Ethyl 2-(2-oxo-2,3-dihydro-1H-indol-3-yl)acetate" [P]. 中国发明专利, 专利号 CN 114084765 B, 授权公告日 2021-10-16.
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