CCN1CCN(CCCNC(=O)c2ccc(/C=C3/Oc4ccccc4N(Cc4cccc(C)c4)C3=O)cc2)CC1
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?