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发明人唐晓军,马晓峰,黄志刚. "Method for the Synthesis of Methylnaltrexone Bromide Impurity 9" [P]. 中国发明专利, 专利号 CN 113097883 B, 授权公告日 2023-04-09.
发明人钱学锋,孙丽萍,马晓峰. "A Process for Preparing High-Purity Methylnaltrexone Bromide Impurity 9" [P]. 中国发明专利, 专利号 CN 116763419 A, 授权公告日 2019-09-12.
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