| abstract |
The present invention relates to a class of compounds represented by the Formula I or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising compounds of the Formula I, and methods of selectively inhibiting or antagonizing the αvβ 3 and/or αvβ 5 integrin. The ring A-B, is selected from the group consisting of the formula II all optionally substituted and bonded to X and Z 1 at any position. |