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发明人马晓峰,周伟,孙丽萍. "A Process for Preparing High-Purity Ethyl 6-phenylimidazo[1,2-a]pyrazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 111637951 B, 授权公告日 2015-03-06.
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