A compound of formula (I)
wherein R, R1, and R2, ring A and ring B are as defined in the specification, processes for their production, their uses, in particular in transplantation, and pharmaceutical compositions containing them.
一种化合物,
化学式为(I),其中R、R1和R2、环A和环B的定义如规范中所述,其制备过程,其用途,特别是在移植中的用途,以及含有它们的制药组合物。