Treatment of galanthaminone with hydriodic acid gave hydroxyapogalanthamine, the structure of which has been elucidated by degradation to the known diphenic acid (IV). The trimethyl ether of hydroxyapogalanthamine has been synthesized by two methods, confirming the structure of this important transformation product of galanthaminone. Based on this and other chemical evidence it has been concluded that galanthamine is represented by formula (III).
用
氢碘酸处理过时的
加兰他敏,得到了羟基阿波
加兰他敏,其结构通过降解已知的二苯酸(IV)得到阐明。羟基阿波
加兰他敏的三甲基醚已经通过两种方法合成,确认了这一重要的
加兰他敏转化产物的结构。基于此及其他
化学证据,得出的结论是,
加兰他敏的结构可表示为公式(III)。