COc1ccc(-c2ccc(/C=C3/C(=N)N4C=CSC4=NC3=O)o2)c([N+](=O)[O-])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?