CCOC(=O)C1=C[C@@H](C(C)C)N(S(=O)(=O)c2ccc(C)cc2)[C@H]1c1ccc(C(F)(F)F)cc1
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?