C[C@@H]1COC(=O)[C@H](CC(=O)OC(C)(C)C)C/C=C\C[C@H](CC(=O)NCCO)C(=O)N1
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?