CC1CCCN(CCCN2C(=O)C3C(C(=O)Nc4ccc(Cl)cc4)C4C=CC3(O4)C2C(=O)NC2CCCCC2)C1
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?