COc1ccc(C(=O)N/C(=C\c2cn(C)c3ccccc23)C(=O)NCCCN2CCOCC2)cc1OC
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?