CC[C@H]1[C@@H](OC(=O)NCc2ccccc2)C[C@@H]2CCN3C(=O)CCC[C@H]1[C@H]23
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?