CC(NC(=O)OC(C)(C)C)C(=O)NC(Cc1ccccc1)C(=O)NCC(=O)Oc1c(Cl)c(Cl)c(Cl)c(Cl)c1Cl
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?