COc1ccc(-c2ccc(N(C)C)cc2)cc1[C@H]1[C@H]2C=CC[C@@H](C)[C@@H]2C(=O)N1Cc1ccccc1
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?