O=C1CCC/C=C/C[C@H](CC(=O)N(CCO)Cc2ccccc2)C(=O)N[C@@H](Cc2ccccc2)CO1
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?