Patent ID: 7662750

Claim:
A compound having the following formula: wherein: R 1 -R 2 are individually selected from the group consisting of: H, C 1 -C 12 alkyl, heteroatom and multiple heteroatom substituted C 1 -C 12 alkyl, C 1 -C 12 branched or cyclic alkyl, aryl and substituted aryl, heteroaryl and substituted heteroaryl, substituted alkylaryl, amines, CH 2 COOCH 2 CH 3 , CH 2 COOH, and CH 2 C≡C, wherein the substitution in any of the substituted groups comprises substituents selected from the group consisting of hydrogen, halogen, oxygen, OH, OCH 3 , and methyl; R 3 is H; and R 4 is 3-fluorophenyl.