2-AMINO-[1,2,4]TRIAZOLO[1,5-A]PYRAZINES SUBSTITUÉES EN 8ÈME POSITION EN TANT QU'INHIBITEURS DE LA TYROSINE KINASE SYK ET EN TANT QU'INHIBITEURS DE LA SÉRINE KINASE GCN2
Compounds of the formula I in which R1, R2 and R4 have the meanings indicated in Claim 1, are inhibitors of Syk, and can be employed, inter alia, for the treatment of cancer, rheumatoid arthritis and/or systemic lupus.