COc1ccc(OCCCn2cc(/C=C3/C(=N)N4C=C(C)SC4=NC3=O)c3ccccc32)cc1
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?