COc1cc(-c2nc(C(N)=O)c3c(n2)n(-c2cccc(C)c2)c(=O)n3C)cc(OC)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?