Patent ID: 7514465

Claim:
A compound having the following formula: wherein Ar 1 is phenyl; Ar 2 is benzene; R 1 is H, carboxyl, C1-C6 alkyloxycarbonyl, halocarbonyl, hydroxyl C1-C6 alkyl, R 2 and R 3 independently are H, Cl, F, Br, OH, O—R, R 4 is (CH 2 ) n —Ar; wherein R 5 , R 6 , R 7 , R 8 , R 9 and R independently are H, halogen, hydroxyl, or C1-C6 alkyl; Ar is C6-14 aryl; furyl; halogen, C1-C6 alkyl or C1-C6 alkoxyl substituted C6-14 aryl; or halogen, C1-C6 alkyl or C1-C6 alkoxyl substituted furyl; and n=1-6.