CCC(C)(C)NC(=O)C(c1ccc(O)cc1)N(CCOC)C(=O)CCC(=O)Nc1nccs1
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?