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发明人王建平,唐晓军,周伟. "A Process for Preparing High-Purity 6,7-Dihydro-5H-pyrazolo[5,1-b][1,3]oxazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116170964 B, 授权公告日 2025-10-22.
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