The structures of two unknown alkaloids (tentatively named Base A and Base D in a previous paper) from Stephania sasakii HAYATA (Menispermaceae) were established as 4-hydroxycrebanine (1), a new 4-hydroxyaporphine alkaloid, and (R)-roemeroline (3), respectively.
研究人员确定了两种未知生物碱的结构(在以前的一篇论文中暂定名为碱基 A 和碱基 D),它们分别是 4-羟基克雷巴宁(1)(一种新的 4-羟基卟吩生物碱)和 (R)-roemeroline (3)。