The present invention relates to the use of novel compounds of formula I: wherein all variable substituents are defined as described herein, which are SYK inhibitors and are useful for the treatment of auto-immune and inflammatory diseases.本發明係關於一種新穎式I化合物之用途:其中所有可變取代基均如本文所述來定義,該等化合物為SYK抑制劑且適用於治療自體免疫疾病及發炎疾病。