CCOC(=O)N1CCC2(CC1)C(C#N)=C(N)Oc1c2sc2nc(C)cc(C)c12
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?