发明人刘建华,朱建伟,郑宇鹏. "Method for the Synthesis of 4-({6-[(3-Carboxypropanoyl)amino]hexyl}amino)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 112576283 B, 授权公告日 2016-05-13.
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