FC(F)(F)c1ccc(CN2C[C@@H]3C(c4ccccc4)C4(c5cccnc5)CC3(C4)[C@H]2c2ccccc2)cc1
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?