Patent ID: 8740997

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; and (B) —O − M + , wherein M + is a positively charged counterion; 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 (R) a substituent selected from the group consisting of —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: (i) 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; (ii) divalent substituents conforming to the structure of Formula (VIII) wherein R 25 and R 26 are independently selected from the group consisting of hydrogen, hydroxyl, and C 1 -C 10 alkyl, c is an integer from 1 to 12, and d is an integer from 1 to 100; (iii) divalent substituents conforming to the structure of Formula (IX) wherein R 27 and R 28 are independently selected from the group consisting of hydrogen, hydroxyl, and C 1 -C 10 alkyl, e is an integer from 1 to 12, and f is an integer from 1 to 100; (iv) divalent substituents conforming to the structure of Formula (XI) wherein R 31 , R 32 , and R 33 are independently selected from alkyl and hydroxyalkyl, and h is an integer from 1 to 100; and (v) divalent substituents comprising two or more substituents selected from the group consisting of (i)-(iv). wherein at least one of R 4 and R 5 is a substituent selected from the group consisting of —NHR 10 and —NR 10 R 10 .