CC1=C2c3ccccc3N(S(=O)(=O)c3ccccc3)[C@H]2[C@H](C(=O)N2C3C[C@H]4CC[C@@]3(CS2(=O)=O)C4(C)C)CC1
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?