Cc1cccc(N2CCN(C(=O)c3cnn(-c4ccc(F)cc4F)c3C3CCN(C(=O)OC(C)(C)C)CC3)CC2)c1C
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?