C=CCc1cc(/C=C2\C(=N)N3N=C(CC(=O)N4CCOCC4)SC3=NC2=O)cc(OC)c1O
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?