CC(C)(C)OC(=O)CC[C@@H](C(=O)N1CCN(C(=O)OC(C)(C)C)CC1)n1cc(C(Cc2ccc(O)cc2)NC(=O)OC(C)(C)C)nn1
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?