Compounds of formula (I) or a pharmaceutiically acceptable derivative thereof:
wherein X, Y, Z, R2a, R2b, R3a, R3b, R8, R9, and Rx are as defined in the specification, a process for the preparation of such compounds, pharmaceutical compositions comprising such compounds and the use of such compounds in medicine.
式 (I) 的化合物或其药学上可接受的衍
生物:
其中 X、Y、Z、R2a、R2b、R3a、R3b、R8、R9 和 Rx 如说明书中所定义;制备此类化合物的工艺;包含此类化合物的药物组合物;以及此类化合物在医学中的用途。