abstract |
The present invention relates to a compound having the structure of formula (I) or a stereoisomer, pharmaceutically acceptable salt, oxide, or solvate thereof, where X, Y, Z, R, R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 are as described herein. The present invention also relates to compositions containing the compound having the structure of formula (I), and a method of treating cancer in a subject. |