O=C(C[C@@H]1C/C=C\CCCC(=O)OC[C@@H]2CCCN2C1=O)N[C@@H](CO)Cc1ccccc1
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?