CC(=O)N1CCc2c(sc3c2c(=O)n(-c2ccccc2)c(=O)n3CC(=O)Nc2cccc(C)c2)C1
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?