CCOC(=O)C1=C(C)N(C)C(C)=C(C(=O)OCC)C1c1ccc(C(=O)OC)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?