Patent ID: 7807712

Claim:
A compound having formula (I) or a pharmaceutically acceptable salt thereof: wherein R 1 , R 2 and R 3 are selected from the group consisting of H, OH, O-alkyl, O-phenyl, and O-substituted phenyl; B represents Ar—Z—O or RO; where Z is an alkane having up to 5 carbon atoms; R is substituted propanol amino, wherein the substituted groups are selected from the group consisting of t-butyl, n-butyl, i-butyl, i-propyl, 4-phenyl piperazin-1-yl, 4-(2-methoxyphenyl)-piperazin-1-yl and 3,4-dimethoxy phenethyl; and Ar is thiazolidinedione methylene phenoxy.