CC(C)(C)OC(=O)N1CCC(C(=O)Nc2cccc(C(=O)NCCCc3ccccc3)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?