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发明人郭海燕,林芳,周伟. "Method for the Synthesis of Apalutamide Impurity 48" [P]. 中国发明专利, 专利号 CN 112532939 A, 授权公告日 2020-02-11.
发明人何建平,刘建华,张德明. "A Process for Preparing High-Purity Apalutamide Impurity 48" [P]. 中国发明专利, 专利号 CN 116186785 B, 授权公告日 2019-06-10.
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