Importance

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Abstract

A method of treating amyloid diseases by administering a compound of Formula I: ##STR1## wherein: R.sub.7 -R.sub.13 are independently --H or --OH; and A is H, --OH, or a moiety of Formula II: ##STR2## wherein: R.sub.1 is hydrogen, lower alkanoyl of up to 6 carbon atoms or aroyl selected from benzoyl and naphthoyl; R.sub.2 is hydrogen, lower alkyl of up to 6 carbon atoms or arylalkyl selected from benzyl, phenylethyl and phenylpropyl; R.sub.3 is hydrogen or lower alkyl of up to 6 carbon atoms; R.sub.4 is hydrogen or lower alkyl of up to 6 carbon atoms, or when X is oxygen, R.sub.4 together with R.sub.5 can represent --CH.sub.2 --O--; X is a valency bond, --CH.sub.2, oxygen or sulfur; Ar is selected from phenyl, naphthyl, indanyl and tetrahydronaphthyl; R.sub.5 and R.sub.6 are individually selected from hydrogen, fluorine, chlorine, bromine, hydroxyl, lower alkyl of up to 6 carbon atoms, a --CONH.sub.2 -- group, lower alkoxy of up to 6 carbon atoms, benzyloxy, lower alkylthio of up to 6 carbon atoms, lower alkysulphinyl of up to 6 carbon atoms and lower alkylsulphonyl of up to 6 carbon atoms; or R.sub.5 and R.sub.6 together represent methylenedioxy; or a pharmaceutically acceptable salt thereof, for treating amyloid diseases, and, thus, having utility in the treatment of Alzheimer's disease.

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First Claim