C[N+]1(CCC[N@+]2(C)C[C@@H]3[C@@H]4C=C[C@@H](CC4)[C@H]3C2)CCOCC1
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?