Cc1c(C(=O)N2CCC(n3nccc3NC(=O)C3CC3)CC2)[nH]c2ccc(Cl)cc12
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?