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发明人郭海燕,何建平,周伟. "A Process for Preparing High-Purity 3-Mercapto-1-(thiophen-2-yl)-5,6,7,8-tetrahydroisoquinoline-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 112170245 B, 授权公告日 2025-04-06.
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