Oc1ccc(Cl)cc1C1=NC(NCN2CCN(CNC3=NC(c4ccccc4)CC(c4cc(Cl)ccc4O)=N3)CC2)=NC(c2ccccc2)C1
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?