CCN(CC)C(=O)[C@H]1CC(CC(=O)NCCCN(C)C)C(=O)N2CCc3c([nH]c4ccc(OC)cc34)[C@]12C
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?