CCOC(=O)c1ccc(S(=O)(=O)N2CCN(CC(O)COc3cccc(C(C)=O)c3)CC2)cc1.O=C(O)C(=O)O
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?