Methods of use of compounds and compounds for the treatment of disorders characterized by the cerebral deposition of amyloid are provided. Among the compounds are those of formulae (I), (II) and (III): ##STR1## in which R.sub.1 is preferably 2-methyl propene, 2-butene, norleucine; R.sub.2, R.sub.4, and R.sub.8 are each independently methyl or ethyl; R.sub.3 is preferably iso-butyl or phenyl; R.sub.5 is preferably iso-butyl; R.sub.6 is H or methyl; R.sub.7 --(Q).sub.n is preferably benzyloxycarbonyl or acetyl; Q is preferably --C(O)--; R.sub.B is preferbly iso-butyl; R.sub.A =--(T).sub.m --(D).sub.m --R.sub.1, is which T is preferably oxygen or carbon, and D is preferably a mono-unsaturated C.sub.3-4 alkenyl being more preferred; and X is an alcohol, particularly a secondary alcohol.
提供了用于治疗以淀粉样物质脑沉积为特征的疾病的化合物和化合物使用的方法。其中化合物包括式(I),(II)和(III):##STR1## 在该式中,R.sub.1 最好是
2-甲基丙烯,
2-丁烯,正癸
氨酸;R.sub.2、R.sub.4 和R.sub.8 各自独立地是甲基或乙基;R.sub.3 最好是异丁基或苯基;R.sub.5 最好是异丁基;R.sub.6 是H或甲基;R.sub.7--(Q).sub.n 最好是苄氧羰基或乙酰基;Q 最好是--C(O)-;R.sub.B 最好是异丁基;R.sub.A =--(T).sub.m--(D).sub.m--R.sub.1,在该式中,T 最好是氧或碳,D 最好是一种单不饱和的 C.sub.3-4 烯基,更好的是;X 是一种醇,特别是二级醇。