Patent ID: 7268138

Claim:
A compound of the Formula: where R 1 is H, halogen or alkyl; R 2 is H, halogen or alkyl; R 3 is independently H, amino, hydroxy, —NH—NH 2 , halogen-substituted amino, —O-alkyl, —O-aryl, or an alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, optionally substituted aryl, optionally substituted heteroaryl or —OR 6 or —NR 6 R 7 or —CH 2 NR 6 R 7 where R 6 and R 7 are each independently H or an alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, optionally substituted aryl, optionally substituted heteroaryl and R 4 is independently H, amino, —NH—NH 2 , —CO—NH—NH 2 , halogen-substituted amino, —O—C 2 -C 6 alkyl, —O-aryl or an alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, optionally substituted aryl, optionally substituted heteroaryl, —COR 8 where R 8 is H, hydroxy, an alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, optionally substituted aryl, optionally substituted heteroaryl or —CH 2 OH or —OR 6 or —CH 2 NR 6 R 7 or —CH 2 R 6 or —NR 6 R 7 where R 6 and R 7 are each independently H or alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, optionally substituted aryl, optionally substituted heteroaryl or aryl substituted alkyl.