C/C(=N/N(C=O)C[n+]1ccccc1)C(CN(CC(C)C)CC(C)C)C(=O)Nc1ccc(C)cc1C.[Cl-]
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?