Patent ID: 7608614

Claim:
A compound of the following formula QUIN: wherein: L 0 selected from H, —OH, —OCH 3 , —OC 2 H 5 , —OC 3 H 7 , —OCH(CH 3 ) 2 , —NHCH 3 , —NHC 2 H 5 , —NHC 3 H 7 , —NHCH(CH 3 ) 2 , —N(CH 3 ) 2 , —N(CH 3 )C 2 H 5 , —N(CH 3 )C 3 H 7 and —N(CH 3 )CH(CH 3 ) 2 , L 1 and L 2 are each independently selected from hydrogen, fluorine, chlorine, bromine, —CH 3 , —C 2 H 5 , —C 3 H 7 , —CH(CH 3 ) 2 , —OCH 3 , —OC 2 H 5 , —OC 3 H 7 and —OCH(CH 3 ) 2 , R 2 is C 1-6 thioalkyl, C 1-6 alkoxy, or Het, where Het is selected from the following: wherein R 6 is H, C 1-6 alkyl, NH—R 7 , NH—C(O)—R 7 , or NH—C(O)—NH—R 7 , wherein each R 7 is independently: H, C 1-6 alkyl, or C 3-6 cycloalkyl; or R 6 is NH—C(O)—OR 8 , wherein R 8 is C 1-6 alkyl; and R is a C 6 or C 10 aryl group.