COc1cc(NC(=O)CSc2nc(C)c(C(=O)Nc3ccccc3)c(-c3ccc(OC)c(OC)c3)c2C#N)c(OC)cc1Cl
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?