COc1cc(OC)cc(C(=O)NC(=S)N2CCN(c3ccc(C(F)(F)F)cc3[N+](=O)[O-])CC2)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?