Cn1nc(N)c2c(-c3ccc(NC(=O)Nc4ccc(F)c(C(F)(F)F)c4)cc3)ccnc21
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?