CC1=CC(C)(C)N2C(=O)C3(C(C#N)=C(N)OC4=C3C(=O)CC(C)(C)C4)c3c(C)c(C)cc1c32
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?