CC(C)(C)c1ccc(Oc2cccc(C3CC(=O)C(C4NCCc5ccccc54)C(=O)C3n3cncn3)c2)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?