CCOC(=O)c1ccc(N2CC(=O)C(c3nc(O)c4ccccc4n3)=C2N)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?