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发明人孙丽萍,赵玉洁,钱学锋. "A Process for Preparing High-Purity N-(2-Morpholino-2-(thiophen-2-yl)ethyl)cyclobutanecarboxamide" [P]. 中国发明专利, 专利号 CN 111535714 B, 授权公告日 2017-06-08.
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