Provided herein are Diaminopyrimidine Compounds having the following structures: wherein R1, R2, R3, and R4 are as defined herein, compositions comprising an effective amount of a Diaminopyrimidine Compound, and methods for treating or preventing liver fibrotic disorders or a condition treatable or preventable by inhibition of a JNK pathway.本文提供具有以下結構之二胺基嘧啶化合物:其中R1、R2、R3及R4如本文所定義;包含有效量之二胺基嘧啶化合物之組合物;及治療或預防肝纖維變性病症或可由抑制JNK路徑而治療或預防之病狀的方法。