CC1CN(C(=O)Cn2cc(S(=O)(=O)CC(=O)N3CCOCC3)c3ccccc32)CC(C)O1
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?