CCN(CCCl)c1cc(CN(C)C)cc(NC(=O)C23CCC(C(=O)Nc4cc(CN(C)C)cc(N(CC)CCCl)c4)(CC2)CC3)c1.Cl
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?