COc1cccc(-c2cccc(-c3nc(C(=O)NCc4ccc5c(c4)OCO5)cc4c3[C@H](CCO)N([S+]([O-])C(C)(C)C)C4)c2)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?