COc1ccc(C(C(=O)NCC2CCCO2)N(C(=O)CNC(=O)c2ccco2)c2cc(C)cc(C)c2)cc1OC
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?