O=C(OCc1cn([C@@H]2CN(C(=O)C3CCCCC3)[C@@H](c3ccc(Cl)cc3)C[C@H]2O)nn1)c1ccccc1
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?