CCOc1ccc(NCc2nnc(SCC(=O)Nc3nc(-c4ccccc4)cs3)n2-c2ccccc2)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?