Patent ID: 8262744

Claim:
A compound conforming to the structure of Formula (I) wherein R 1 is carbonyl or sulfonyl; R 3 is selected from the group consisting of: (A) hydroxyl; (B) —O − M + , wherein M + is a positively charged counterion; and (C) a substituent selected from the group consisting of —OR 6 , —NHR 6 , and —NR 6 R 6 ; wherein R 6 is selected from the group consisting of —R 7 —O—R 8 —R 9 and —R 8 —R 9 ; R 7 is alkyl or aryl; R 9 is hydrogen or alkyl; and R 8 is a divalent substituent selected from the group consisting of: divalent oligomeric substituents comprising two or more divalent repeating units independently selected from repeating units conforming to the structure of Formula (V) wherein R 20 and R 21 are independently selected from the group consisting of hydrogen, alkyl, hydroxyalkyl, aryl, alkoxyalkyl, and aryloxyalkyl; R 4 and R 5 are independently selected from the group consisting of hydrogen, alkoxy, amino, alkylamino, arylamino, hydroxyalkylamino, morpholino, aniline, alkyl anilino, piperazinyl, piperidinyl, and a substituent selected from the group consisting of —OR 10 , —NHR 10 , and —NR 10 R 10 ; wherein R 10 is selected from the group consisting of —R 11 —O—R 12 —R 13 and —R 12 —R 13 ; R 11 is alkyl or aryl; R 13 is hydrogen or alkyl; and R 12 is a divalent substituent selected from the group consisting of: divalent oligomeric substituents comprising two or more divalent repeating units independently selected from repeating units conforming to the structure of Formula (V) wherein R 20 and R 21 are independently selected from the group consisting of hydrogen, alkyl, hydroxyalkyl, aryl, alkoxyalkyl, and aryloxyalkyl; and wherein R 3 is not hydroxyl or —O − M + when R 4 and R 5 are both selected from the group consisting of hydrogen, alkoxy, amino, alkylamino, arylamino, hydroxyalkylamino, morpholino, anilino, and alkyl anilino.