COc1cc2c(=O)n(Cc3ccccc3Cl)c(=O)n(CC(=O)Nc3ccc(C)c(C)c3)c2cc1OC
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?