CCO[C@H]1OC(C(=O)N2CCN(Cc3ccccc3)CC2)=C[C@@H](C)[C@@H]1CCCO
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?