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发明人何建平,郭海燕,周伟. "Method for the Synthesis of (4-Bromothiophen-2-yl)(1,5-dioxa-9-azaspiro[5.5]undecan-9-yl)methanone" [P]. 中国发明专利, 专利号 CN 111528051 B, 授权公告日 2024-10-11.
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