| 摘要 |
The invention relates to compounds of structural formula (I): or a pharma ceutically acceptable salt, solvate, clathrate, or prodrug thereof, wherein A, L, Y, W1, W2, Z, X, X2, and n are defined herein. These compounds are use ful as immunosuppressive agents and for treating and preventing inflammatory conditions, allergic disorders, and immune disorders.
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