发明人杨光,李文辉,朱建伟. "Method for the Synthesis of 4-Methyl-2-[(4-methylphenyl)sulfonylamino]pentanoic Acid" [P]. 中国发明专利, 专利号 CN 116397723 B, 授权公告日 2022-03-09.
发明人罗永刚,张德明,韩伟. "A Process for Preparing High-Purity 4-Methyl-2-[(4-methylphenyl)sulfonylamino]pentanoic Acid" [P]. 中国发明专利, 专利号 CN 110079048 B, 授权公告日 2022-02-22.
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