Patent ID: 7842705

Claim:
A pharmaceutical formulation comprising a compound of the formula: wherein: the dashed lines indicate the presence of optional double bonds; X is O, S, or NR 5 , R 1 and R 2 are independently selected from the group consisting of halogen, hydroxyl, alkoxy, CF 3 , alkyl, substituted alkyl, alkenyl, alkynyl, cycloalkyl, substituted cycloalkyl, aryl, substituted aryl, alkaryl, arylalkyl, heteroaryl, substituted heteroaryl, heterocycle, substituted heterocycle, amino, alkylamino, dialkylamino, carboxylic acid, carboxylic ester, carboxamide, nitro, cyano, azide, alkylcarbonyl, acyl, and trialkylammonium; R 3 and R 4 are independently selected from the group consisting of H, halogen, hydroxyl, alkoxy, CF 3 , alkyl, substituted alkyl, alkenyl, alkynyl, cycloalkyl, substituted cycloalkyl, aryl, substituted aryl, alkaryl, arylalkyl, heteroaryl, substituted heteroaryl, heterocycle, substituted heterocycle, amino, alkylamino, dialkylamino, carboxylic acid, carboxylic ester, carboxamide, nitro, cyano, azide, alkylcarbonyl, acyl, and trialkylammonium; R 5 is selected from the group consisting of H, alkyl, substituted alkyl, acyl, alkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, and dialkylaminocarbonyl; or a pharmaceutically acceptable salt thereof; and a pharmaceutically acceptable carrier.