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发明人孙丽萍,李文辉,胡光. "A Process for Preparing High-Purity 3-(1-Methanesulfonylpyrrolidin-2-yl)-5-methyl-1,2-oxazole" [P]. 中国发明专利, 专利号 CN 109651954 B, 授权公告日 2022-07-09.
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