CCn1ncc([C@@H]2C[C@H]3CN(Cc4ccccc4C)C(=O)[C@]34CCCN24)c1C
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?