Patent ID: 6914074

Claim:
A compound of formula I, having the structure wherein R 1 and R 2 are each, independently, selected from hydrogen, hydroxyl, alkyl of 1-6 carbon atoms, alkenyl of 2-7 carbon atoms, and alkynyl of 2-7 carbon atoms, alkoxy of 1-6 carbon atoms, or halogen; R 5 , R 6 , R 7 , R 8 , and R 9 are each, independently, hydrogen, alkyl of 1-6 carbon atoms, alkenyl of 2-7 carbon atoms, alkynyl of 2-7 carbon atoms, halogen, alkoxy of 1-6 carbon atoms, —CN, trifluoromethyl, phenylalkyl of 7-12 carbon atoms, phenyl, wherein the alkyl or alkenyl moieties of R 5 , R 6 , R 7 , R 8 , or R 9 may be optionally substituted with hydroxyl, —CN, halogen, trifluoroalkyl, trifluoroalkoxy, —NO 2 , or phenyl; wherein the phenyl moiety of R 5 , R 6 , R 7 , R 8 , or R 9 may be optionally mono-, di-, or tri-substituted with alkyl of 1-6 carbon atoms, alkenyl of 2-7 carbon atoms, halogen, hydroxyl, alkoxy of 1-6 carbon atoms, halogen, —CN, —NO 2 , amino, alkylamino of 1-6 carbon atoms, dialkylamino of 1-6 carbon atoms per alkyl group, thio, alkylthio of 1-6 carbon atoms, alkylsufinyl of 1-6 carbon atoms, alkylsulfonyl of 1-6 carbon atoms, alkoxycarbonyl of 2-7 carbon atoms, alkylcarbonyl of 2-7 carbon atoms, or benzoyl; with the proviso that at least one of R 5 or R 9 is not hydrogen, or a pharmaceutically acceptable salt thereof.