Patent ID: 6224644
Filing Date: 2001-05-01
Classification: A61K,C07D

Abstract:
A dye compound comprising the formula: ##STR11##wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, and R.sub.8 are each independently selected from a group consisting of hydrogen, C.sub.1 -C.sub.6 alkyl group, a C.sub.0 -C.sub.4 alkyl group having a hydrophilic substituent selected from a group consisting of sulfonate, carboxylate, hydroxyl, substituted amines and quaternary amines;wherein Y.sub.1 and Y.sub.2 are each independently selected from a group consisting of: ##STR12##wherein R.sub.9, R'.sub.9, R.sub.10, and R'.sub.10 are each independently selected from a group consisting of C.sub.1 -C.sub.6 alkyl, and a heteroatom substituted C.sub.1 -C.sub.6 alkyl wherein the heteroatom is O, N or S;wherein R.sub.11 and R.sub.12 are each independently selected from a group consisting of C.sub.1 -C.sub.30 alkyl, phenyl substituted C.sub.1 -C.sub.30, C.sub.1 -C.sub.30 having a protected substituent selected from a group consisting of: ##STR13## ##STR14##wherein R.sub.13, R'.sub.13, R"".sub.13 and R'"".sub.13 are each independently C.sub.1 -C.sub.30 alkyl, Q is sulfur, nitrogen or oxygen, X is a halogen and Y is a halogen and at least one of R.sub.11 and R.sub.12 is the C.sub.1 -C.sub.30 having the protected substituent; andL is selected from a group consisting of: methine, a methine group having a substituent C.sub.1 -C.sub.30 alkyl group and a substituted C.sub.1 -C.sub.30 alkyl group having a phenyl, hydroxyl, sulfonyl, a halogen atom, a heteroatom substituted phenyl and a C.sub.1 -C.sub.4 alkoxyl where n is 1, 2, 3 or greater.