CC[C@@H](C)[C@H](NC(=O)OC(C)(C)C)c1nnc(S(=O)(=O)Cc2cc(C)ccc2C)o1
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?