Patent ID: 9040721
Filing Date: 2015-05-26
Classification: A61K,A61N,A61P,C07D,C09B

Abstract:
1. A dye comprising at least one of moieties Het and Het + , wherein Het and Het + have the formulae: wherein: each of X R R Y is O, S, Se, Te, C(R each R R L is a single covalent bond or is a covalent linkage that is linear or branched, cyclic or heterocyclic, saturated or unsaturated, having 1-20 non-hydrogen atoms selected from the group consisting of C, N, P, O and S, arranged so that the linkage contains any combination of ether, thioether, amine, ester, amide bonds; single, double, triple or aromatic carbon-carbon bonds; or carbon-sulfur bonds, carbon-nitrogen bonds, phosphorus-sulfur, nitrogen-nitrogen, nitrogen-oxygen or nitrogen-platinum bonds, or aromatic or heteroaromatic bonds; R S R R ring A is an aromatic or heterocyclic ring having at least two halo substituents thereon, wherein at least one of said halo substituents is iodine or bromine, with the proviso that when the number of halo substituents on ring A is two, and one of the halo substituents is iodine, the other is not chlorine.