[Problem]
Provided is a compound which is useful as an active ingredient for a pharmaceutical having a PKCθ inhibition activity, particularly a pharmaceutical composition for inhibiting acute rejection occurring in transplantation.
[Means for Solution]
The present inventors have conducted extensive studies on a compound having a PKCθ inhibition activity, and as a result, they have found that a compound having a structure such as aralkyl and the like on an amino group at the 2-position and also having a structure such as an adamantylalkyl group and the like on an amino group at the 4-position of 2,4-diaminopyrimidine, or a salt thereof has an excellent PKCθ inhibition activity, thereby completing the present invention. The 2,4-diaminopyrimidine compound of the present invention can be used as a PKCθ inhibitor or an inhibitor of acute rejection occurring in transplantation.
                            问题
本发明提供了一种化合物,该化合物可用作具有 PKCθ 抑制活性的药物的活性成分,特别是用于抑制移植中发生的急性排斥反应的药物组合物。
[解决方法]
本发明人对具有 PKCθ 抑制活性的化合物进行了广泛的研究,结果发现在 2 位
氨基上具有芳烷基等结构、在 4 位
氨基上具有
金刚烷基等结构的 2,4-二
氨基嘧啶或其盐类化合物具有优异的 PKCθ 抑制活性,从而完成了本发明。本发明的 2,4-二
氨基嘧啶化合物可用作 PKCθ 
抑制剂或移植中发生的急性排斥反应的
抑制剂。