COc1ccc(-c2nc3ccc(NC(=O)CO)cc3c(=O)n2Cc2cccc(Cl)c2)cc1COc1ccc(NC(C)=O)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?