Bicyclic heteroaryl cycloalkyldiamine derivatives

A compound of the formula (I) or a pharmaceutically acceptable salt thereof,

• wherein
• X1 is CR1;
• X2 is CH;
• Y is CH2 or O;
• A is bicyclic hetereoaryl having from 8 to 10 ring atoms, wherein 1-3 of said ring atoms are heteroatoms selected from N, O and S and wherein said heteroaryl may be unsubstituted of substituted at a carbon atom by a R2 or at a nitrogen atom by a R3;
• R1 is H, Hal or C1-4 alkyl;
• R2 is H, C1-4 alkyl, C3-5 cycloalkyl, CN or Hal;
• and
• R3 is H or alkyl.