Nc1ncnc2c1nc(Sc1ccc(Cl)cc1)n2[C@@H]1O[C@@H]2COP(=O)([O-])O[C@H]2[C@H]1O.[Na+]
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?