发明人沈红梅,周伟,冯建国. "Method for the Synthesis of Ethyl 2-oxo-2-(2-oxo-2,3-dihydro-1h-indol-3-yl)acetate" [P]. 中国发明专利, 专利号 CN 116523741 B, 授权公告日 2020-09-17.
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