A compound of formula I
wherein R, R
a
, R
b
, R
c
, R
d
and R
e
are as defined in the specification, processes for their production, their uses, in particular in transplantation, and pharmaceutical compositions containing them.
A compound of formula I
wherein R, Ra, Rb, Rc, Rd and Re are as defined in the specification, processes for their production, their uses, in particular in transplantation, and pharmaceutical compositions containing them.