The invention relates to compounds of Formula (0):
wherein A
1
-A
8
, R
4
and R
5
each has the meaning as described herein. Compounds of Formula (0) and pharmaceutical compositions thereof are useful in the treatment of diseases and disorders in which undesired or over-activation of NF-kB signaling is observed.
The invention provides compounds of formula (I): or a salt thereof as described herein. The invention also provides pharmaceutical compositions comprising a compound of formula (I), processes for preparing compounds of formula (I), intermediates useful for preparing compounds of formula I and therapeutic methods for treating a Retroviridae viral infection including an infection caused by the HIV virus.