发明人李文辉,周伟,郭海燕. "Method for the Synthesis of 2-(4-Ethyl-2,3-dioxopiperazin-1-yl)-N-(3-fluorophenyl)acetamide" [P]. 中国发明专利, 专利号 CN 112008180 B, 授权公告日 2017-02-16.
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