Patent ID: 7199146

Claim:
A compound of the following formula, or a pharmaceutically acceptable salt thereof: wherein R 1 is selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, benzyl, carbocyclic, and hydrogen; R 2 and R 3 are each selected from the group consisting of alkyl, alkenyl, alkynyl, aryl, C-amido, carbocyclic, C-carboxy, hydrogen; or, R 2 and R 3 are combined to form a carbocyclic group; A is a branched or straight chain alkylene, a branched or straight chain alkylidene, a branched or straight chain alkylidyne, oxo, or sulfonyl; B is aryl or heteroaryl; and R 4 is amidine, carboxyamidine, hydroxyamidine or ketoamidine, as a single stereoisomer, a mixture of individual stereoisomers or a racemic mixture; and, wherein the following compound is excluded: 7-[3-(3-aminobenzyl)-4-(4-aminophenyl)-4-methyl-2,5-dioxo-imidazolidin-1-ylmethyl]-naphthalene-2-carboxamidine.