CC(C)(C)c1cc(C(O)(C(F)(F)F)C(F)(F)F)c2c(c1)C(C(F)(F)F)(C(F)(F)F)OC(C(C)(C)C)N2
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?