CCOC(=O)c1c(NC(=O)c2ccc(N3C(=O)[C@H]4[C@@H]5C=C[C@@H](C5)[C@H]4C3=O)cc2)sc2c1CC(C)CC2
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?