CCOC(=O)CNC(=O)N(C)[C@H]1C[C@H]2c3[nH]c4ccccc4c3CCN2C(=O)[C@H]1[C@H](C)O
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?