CCOc1ccccc1C1C(C(=O)Nc2ccccc2)=C(C)Nc2nc(SCC(=O)c3ccc(C)cc3)nn21
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?