CCN(CC)C(=O)Cn1c(=O)n(-c2ccc(Cl)cc2)c(=O)c2c3c(sc21)CCC3
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?