| abstract |
The invention relates to compounds represented by Formula (I): n n nand to prodrugs thereof, pharmaceutically acceptable salts or solvates of said compounds or said prodrugs, wherein each of R 1a-d , R 2a-b , R 3 , and X 1 are defined herein. The invention also relates to pharmaceutical compositions containing the compounds of Formula (I) and to methods of treating hyperproliferative disorders in a mammal by administering compounds of Formula (I). |