Cc1ccc2nc(-c3ccccc3)cc(C(=O)N3CCN(S(=O)(=O)c4c(C)noc4C)CC3)c2c1
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?