Cl.O=C1CC[C@@]2(O)C3Cc4ccc(O)c5c4C2(CCN3CC2CC2)[C@H]1O5
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?