COc1cc(NC(=O)COC(=O)CNS(=O)(=O)c2ccc(F)c(F)c2F)cc(OC)c1
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?