Patent ID: 6977255

Claim:
A compound having the following formula (I): wherein R is H, OH, F, Cl, Br, I, C 1 -C 6 alkyl, aryl or (CH 2 ) n -aryl; R 11 is C 3 -C 6 cycloalkyl, CH═CH-aryl, C≡C-aryl, (CHR 3 ) n -aryl, NR 3 -cycloalkyl, NR 3 —(CHR 3 ) n -aryl, (CHR 3 ) n —NR 3 -aryl, (CHR 3 ) n —NR 3 -cycloalkyl, (CHR 3 ) n —O-aryl, (CHR 3 ) n —O-cycloalkyl, O—(CHR 3 ) n -aryl, S—(CHR 3 ) n -aryl, 4-methylbenzensulfonate, CO-aryl, wherein n is 0, 1, or 2 and alkyl, cycloalkyl or aryl is optionally substituted with OH, OCH 3 F, Cl, Br, I, CN, CO 2 H, CO 2 R 3 , NO 2 , CF 3 , substituted or unsubstituted C 1 -C 6 alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, OCF 3 , OR 3 , OSO 2 -aryl, substituted or unsubstituted amine, NHCOR 3 , NHSO 2 R 3 , CONHR 3 , or SO 2 NHR 3 ; R 3 is H, or substituted or unsubstituted C 1 -C 6 alkyl, substituted or unsubstituted aryl; the term “aryl” refers to aromatic or heteroaromatic rings; and the term “cycloalkyl” refers to carbocyclic or heterocarbocyclic rings.