CC1=C(C(=O)OCCc2ccc([N+](=O)[O-])cc2)C(c2ccccc2C(F)(F)F)C(C(=O)OC(C)C)=C(C)N1
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?