Cc1cccc(N2CCN(C3=NC(=O)/C(=C\c4c[nH]nc4-c4ccccc4)S3)CC2)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?