CCCCCNC(=O)OC1CCn2c1nc1c2C(=O)C(C)=C(N2CC2)C1=O
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?