O=C(O)C[C@H]1OCC=C2CN3CC[C@@]45C6=CC(=O)C(=O)C([N+](=O)[O-])=C6N[C@H]4[C@H]1[C@H]2C[C@@H]35
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?