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发明人周伟,罗永刚,马晓峰. "A Process for Preparing High-Purity 2-{[5-(Methoxycarbonyl)-2-nitrophenyl]-amino}acetic acid" [P]. 中国发明专利, 专利号 CN 109923903 A, 授权公告日 2025-08-18.
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