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本文报道了从大叶马蹄香Asaturn maximum Hemsl.的根及根茎中分离得到的一种新的马兜铃内酰胺,其化学结构为10-氨基-7,8-二甲氧基-3,4-次甲二氧基菲-1-羧酸内酰胺,命名为马兜铃内酰胺Ⅶ(1).“,”A new aristololactam, aristololactam VII (1), was isolated from the root and rhizome of Asarum maximum Hemsl. On the basis of spectroscopic analysis, its structure was identified as 10-amino-7,8-dimethoxy-3,4-methylenedioxy-phenanthrene-1-carboxylic acid iactam.