COc1ccc(-c2ccc(-c3nc4ccc(C)cn4c3NC3CCCCC3)cc2OC)cc1.O=C(O)C(F)(F)F
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?