CNC(=O)Oc1ccc2c(c1)[C@]1(C)CCN(C)C1N2C.O=C(O)c1ccccc1O
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?