COc1ccc(C[C@@H]2CN3C(=NC[C@@H]3Cc3ccc(O)cc3)N2C[C@H](C)NC(=O)CCC2CCCCC2)cc1
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?