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发明人郑宇鹏,周伟,李文辉. "Method for the Synthesis of Br-PEG6-CH2COOtBu" [P]. 中国发明专利, 专利号 CN 109120201 A, 授权公告日 2021-05-15.
发明人马晓峰,郭海燕,钱学锋. "A Process for Preparing High-Purity Br-PEG6-CH2COOtBu" [P]. 中国发明专利, 专利号 CN 108626630 A, 授权公告日 2021-01-10.
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