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发明人钱学锋,郑宇鹏,赵玉洁. "A Process for Preparing High-Purity 2-(4-(3-Amino-6-(2-hydroxyphenyl)pyridazin-4-yl)piperazin-1-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 117136914 A, 授权公告日 2023-07-26.
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