CC1=N/C(=C/c2ccc(O)cc2)C(=O)N1n1c(-c2ccccc2)nc2ccccc2c1=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?