COc1cc(C(=O)OC(C)C(=O)NCC2CCCCC2)cc(NC(=O)c2ccco2)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?