abstract |
The present invention provides compounds of formula (I) n nwherein n, p, R 1 , R 2 , X 1 , X 2 , X 3 , X 4 , X 5 , R 3a , R 3b , R 4 , R 5 and R 6 are as defined in the specification, a process for their preparation, pharmaceutical compositions containing them and their use in therapy. |