COc1ccc(S(=O)(=O)N(C)[C@H]2C[C@H]3c4cc(Oc5ccccc5C)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. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?