发明人徐明华,马晓峰,黄志刚. "Method for the Synthesis of N-(1,3,4,7-Tetrachloro-9-oxo-9H-fluoren-2-yl)acetamide" [P]. 中国发明专利, 专利号 CN 115756270 A, 授权公告日 2019-03-02.
发明人韩伟,钱学锋,郭海燕. "A Process for Preparing High-Purity N-(1,3,4,7-Tetrachloro-9-oxo-9H-fluoren-2-yl)acetamide" [P]. 中国发明专利, 专利号 CN 111430680 A, 授权公告日 2020-09-17.
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