abstract |
Compounds according to Formula I are provided: n nand salts thereof, wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 13 , A, X and Y are as defined herein. Methods for preparing compounds of Formula I are also provided, as well as methods of treating cellular proliferative disorders, such as cancer, using compounds of Formula I. |