COc1ccc2c(c1)c(N1CCCC1=O)c(C(=O)Nc1ccc(Cl)cc1C)n2C
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?