发明人张德明,王建平,沈红梅. "Method for the Synthesis of Naltrexone impurity 53" [P]. 中国发明专利, 专利号 CN 116239789 B, 授权公告日 2022-03-17.
发明人周伟,郭海燕,朱建伟. "A Process for Preparing High-Purity Naltrexone impurity 53" [P]. 中国发明专利, 专利号 CN 117178419 B, 授权公告日 2019-12-19.
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