O=C(C[C@H]1C/C=C\CCC(=O)O[C@@H](c2ccccc2)CNC1=O)NCCO
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?