CCOc1ccccc1N1CSC2=C(C#N)C(c3c(OC)ccc4ccccc34)CC(=O)N2C1
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?