CCOC(=O)C1CCN(C(=O)c2cccc(C(=O)N3CCC(C(=O)OCC)CC3)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?