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发明人刘建华,沈红梅,林芳. "A Process for Preparing High-Purity tert-butyl 2-methyl-4-[(1-propylpyrrolidin-3-yl)amino]pyrrolidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 111948946 B, 授权公告日 2015-07-05.
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