COc1cc(/C=C/C(=O)N2CCN(CC(O)COc3ccccc3)CC2)cc(OC)c1OC.Cl
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?