COc1cccc(C2CC(=O)N3CN(c4cccc(Cl)c4C)CSC3=C2C#N)c1OC
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?