Patent ID: 7393865

Claim:
A compound having the following structure: or a stereoisomer, prodrug or pharmaceutically acceptable salt, ester or solvate thereof, wherein: R 1 is aryl, substituted aryl, heterocycle, substituted heterocycle, alkyl, substituted alkyl, —O-(alkyl) or —O-(substituted alkyl); L 1 and L 2 are the same or different and are independently alkanediyl or substituted alkanediyl; R 2 is, at each occurrence, the same or different and independently alkyl, substituted alkyl, alkoxy, substituted alkoxy, cyano, halogen, hydroxyl or —NR 4a R 4b ; n is 0, 1 or 2 and represents the number of R 2 groups; R 3a and R 3b are the same or different and are independently hydrogen, alkyl or substituted alkyl, or R 3a and R 3b together with the nitrogen to which they are attached form a heterocycle or a substituted heterocycle; and R 4a and R 4b are the same or different and are independently hydrogen, alkyl or substituted alkyl.