Patent ID: 7897631

Claim:
A compound of Formula (II)(a): wherein: R 1a and R 1b are each H; R 2 , R 3 and R 5 and are each independently H or alkyl; each occurrence of R x , R y , R u and R v is present or absent (depending upon chain saturation), and are each independently H or alkyl; R 6 is independently selected from the group consisting of: H, hydroxy, acyl, alkyl, alkenyl, alkynyl, cycloalkyl, heterocyclo, aryl, heteroaryl, alkoxy, amino, amide, thiol, sulfone, sulfoxide, oxo, oxy, nitro, carbonyl, carboxy, amino acid sidechain, amino acid and peptide; n=1 to 6; and m=0 to 20; or a pharmaceutically acceptable salt thereof.