CCOC(=O)C1=c2sc(=Cc3cccs3)c(=O)n2C(N)=C(C#N)C1c1cccs1
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?