Two new indolic metabolites, fumitremorgin A and B, were isolated from the fungus Aspergillus fumigatus. These two metabolites caused severe tremor and convulsion in experimental animals. The structure of fumitremorgin A, including the stereochemistry, was determined to be 1 mainly on the basis of the spectral data for the compound and some derivatives obtained from it. The stereochemical factors affecting the appearance of tremorogenic activity in fumitremorgin A and related compounds are discussed.
从曲霉菌中分离出了两种新的吲哚代谢物--烟曲霉毒素 A 和 B。这两种代谢物会导致实验动物严重震颤和抽搐。主要根据该化合物及其一些衍生物的光谱数据,确定了 fumitremorgin A 的结构(包括立体化学结构)为 1。本文讨论了影响烟曲霉毒素 A 和相关化合物出现致震活性的立体化学因素。