CCCCN1CC(=O)N2[C@H](c3ccc(Cl)cc3)[C@@H]3C(=O)N(CC)C(=O)[C@@H]3[C@]2(C)C1=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?