COC(=O)C(Cc1c(C2Nc3ccccc3C2CC(NC(=O)CNC(C)=O)C(=O)OC)[nH]c2ccccc12)NC(=O)CNC(C)=O
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?