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发明人罗永刚,钱学锋,冯建国. "A Process for Preparing High-Purity but-3-ynyl N-[2-(2,6-dioxo-3-piperidyl)-1-oxo-isoindolin-4-yl]carbamate" [P]. 中国发明专利, 专利号 CN 109534096 B, 授权公告日 2017-07-17.
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