The present invention relates to oxazolopyrimidine compounds of the formula I,in which A, R1, R2, R3, R4and X are defined as indicated in the claims. The compounds of the formula I are suitable for wound healing, for example.本發明係關於式I之唑并嘧啶化合物,其中A、R1、R2、R3、R4及X係如申請專利範圍中所指示般定義。式I之化合物係適合用於例如傷口癒合。