CCOc1ccc(N2C(=O)/C(=C\NNC(=O)C3COc4ccccc4O3)c3ccccc3C2=O)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?