CC[C@H]1O[C@@H](n2cnc3c(Nc4ccc(CC(=O)Nc5ccc(CC(=O)NCCN)cc5)cc4)ncnc32)[C@H](O)[C@@H]1O
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?