| 摘要 |
<p>The present invention is directed to a compound of Formula I wherein R1, R2, R3, R4, R5, R6, W, X, Y, and Z are defined herein. The compounds of the present invention are useful as anticancer agents. Specifically, the compounds are useful for treating or preventing cancer and tumor growth. The present invention is also directed to compositions comprising a compound according to the above formula. The present invention is also directed to methods of using a compound according to the above formula.</p> |
