CC(C)(C)C1=CC(=N/N=c2\scc(-c3ccccc3)n2Cc2ccccc2)C=C(C(C)(C)C)C1=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?