发明人郭海燕,黄志刚,王建平. "Method for the Synthesis of 1-ethyl-2,3-dihydro-1H-indole-2,3-dione
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Z56791052" [P]. 中国发明专利, 专利号 CN 115890370 A, 授权公告日 2019-07-16.
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