CC1O[C@@H](OC2CC(O)[C@@]3(CO)C4C(O)C[C@@]5(C)C(C6=CC(=O)OC6)CC[C@]5(O)C4CC[C@]3(O)C2)C(O)C(O)C1O
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?