COc1cccc(N2CCN(C(=O)CN(c3cc(C)cc(C)c3)S(=O)(=O)c3c(C)noc3C)CC2)c1
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?