COc1ccc(S(=O)(=O)N(C)[C@H]2C[C@H]3c4cc(-c5ccccc5)ccc4CCN3C(=O)[C@H]2[C@H](C)O)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?