O=C(c1cccs1)[C@@H]1[C@@H]2C(=O)N(Cc3ccc4c(c3)OCO4)C(=O)[C@@H]2C2c3ccccc3C=CN21
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?