C23H30FN5O6, monoclinic, P21/n (no. 14), a=9.5772(3) Å, b=15.9466(5) Å, c=15.8380(5) Å, =103.951(1)°, V =2347.49(13) Å3, Z =4, Rgt(F)=0.0423, wR(F2)=0.192, T =150 K.