CCOC(=O)C1=C(Nc2ccc(C)cc2)S/C(=C\c2cn(CC(=O)NCC3CCCO3)c3ccccc23)C1=O
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?