CC1=C(C(=O)Nc2cc(C)ccn2)C(c2cnn(C)c2)C2=C(O)CC(c3ccccc3)CC2=N1
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?