The invention provides compounds of the formula (I):
##STR00001##
or salts, solvates, tautomers or N-oxides thereof, wherein J.sup.1-J.sup.2
is CH.dbd.CH, N.dbd.CH, CH.dbd.N, HN--C(O) or CH.sub.2CO; T is N or CH
and GP is as defined in the claims. The compounds have activity as
inhibitors of PKA and PKB kinases and are useful in the treatment of
cancers.