CC(=O)OCC(NC(=O)C(COCc1ccccc1)NC(=O)OC(C)(C)C)C1OC(n2cc(C)c(=O)[nH]c2=O)C(OC(C)=O)C1OC(C)=O
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?