#$%^&*AU2013201925A120130418.pdf#####ABSTRACT The invention relates to compounds of structural formula (1): R1 X1 L 1 X (Z)n 5 (1) or a pharmaceutically acceptable salt, solvate, clathrate, or prodrug thereof, wherein R1, X1, X2 , Y, Z, L, and n are defined herein. The compounds are useful as immunosuppressive agents and for treating and preventing inflammatory conditions, allergic disorders, and immune disorders. 10 - 242 -