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发明人张德明,周伟,高志强. "A Process for Preparing High-Purity 5-Oxo-5-{3-oxo-2-[2-oxo-2-(phenethyloxy)ethyl]-1-piperazinyl}pentanoic acid" [P]. 中国发明专利, 专利号 CN 109384384 B, 授权公告日 2025-02-19.
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