COc1ccc(OC)c(C2C(C(=O)Nc3ccccc3OC)=C(C)Nc3c(C(=O)Nc4ccc(F)cc4)cnn32)c1
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?