Cc1nc(-c2ccc(S(=O)(=O)NCC3CCN(C(=O)OC(C)(C)C)CC3)s2)cs1
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?