The invention relates to compounds having formula (I):
Wherein R1, R2, R3 and R4 are as defined herein. The invention also relates to a method of preparing said compounds and to the application thereof in therapeutics.
该发明涉及具有以下
化学式(I)的化合物:其中R1、R2、R3和R4如本文所定义。该发明还涉及制备所述化合物的方法以及在治疗中的应用。