COc1ccc(/C=C2/C(=N)N3N=C(CC(=O)N4CCCC4)SC3=NC2=O)cc1OC
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?