COC(=O)C1=C(O)/C(=C\c2ccc(CNC(=O)C(=O)Nc3ccc(C)c(C)c3)o2)N=C1C
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?