| abstract |
The present invention relates to a compound of formula (VII)I, or pharmaceutically acceptable salt or ester thereof, wherein: X is NR 7 ; Y is O or N—(CH 2 ) n R 19 ; n is 1, 2 or 3; m is 1 or 2; R 1 and R 2 are each independently H, alkyl or cycloalkyl; R 4 and R 4′ are each independently H or alkyl; or R 4 and R 4′ together form a spiro cycloalkyl group; R 19 is H, alkyl, aryl or a cycloalkyl group; R 6 is OR 8 or halogen; and R 7 and R 8 are each independently H or alkyl. Further aspects relate to pharmaceutical compositions comprising said compounds and use therefore in the treatment of proliferative disorders and the like. |