CCOC(=O)C1N(S(=O)(=O)c2ccc(C)cc2)CCC12c1ccccc1N(C(C)=O)C2c1ccc(OC)c(OC)c1
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?