CC[C@H](NC(=O)[C@H](C)NC)C(=O)N1CCC[C@H]1c1nc(-c2ccccc2)c(-c2ccccc2)o1.O=CO
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?