CC(=O)O[C@H]1CC[C@H]2[C@@H]3CC[C@H]4Nc5c(cnn5S(C)(=O)=O)C[C@]4(C)[C@H]3CC[C@]12C
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?