Compounds of formula (I) or a pharmaceutically acceptable derivative thereof:
wherein A, R1, R2, Rx, R8, R9 and n 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.
公式(I)化合物或其药学上可接受的衍
生物,其中A,R1,R2,Rx,R8,R9和n的定义如规范中所述,制备这种化合物的过程,包含这种化合物的药物组合物以及在医学上使用这种化合物的用途。