CCOC(=O)c1[nH]c2cccc3c2c1CC[C@H](NC(=O)C(F)(F)F)C3=O
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?